Why isn't my Python function entering the if-else statement? [on hold]

I have a function in Python that returns the initialized value of the value I want to return instead of going into the if-else to find the right number to print. Here is my code:

def getCell(x, y):
   answer = -1
   if y <= 16666666.6667:
        if x <= 16666666.6667:
            answer = 0
        elif x <= 33333333.3333:
            answer = 1
        elif x <= 50000000.0:
            answer = 2
        elif x <= 66666666.6667:
            answer = 3
        elif x <= 83333333.3333:
            answer = 4
        elif x <= 100000000.0:
            answer = 5
    elif y <= 33333333.3333:
        if x <= 16666666.6667:
            answer = 6
        elif x <= 33333333.3333:
            answer = 7
        elif x <= 50000000.0:
            answer = 8
        elif x <= 66666666.6667:
            answer = 9
        elif x <= 83333333.3333:
            answer = 10
        elif x <= 100000000.0:
            answer = 11
    elif y <= 50000000.0:
        if x <= 16666666.6667:
            answer = 12
        elif x <= 33333333.3333:
            answer = 13
        elif x <= 50000000.0:
            answer = 14
        elif x <= 66666666.6667:
            answer = 15
        elif x <= 83333333.3333:
            answer = 16
        elif x <= 100000000.0:
            answer = 17
    elif y <= 66666666.6667:
        if x <= 16666666.6667:
            answer = 18
        elif x <= 33333333.3333:
            answer = 19
        elif x <= 50000000.0:
            answer = 20
        elif x <= 66666666.6667:
            answer = 21
        elif x <= 83333333.3333:
            answer = 22
        elif x <= 100000000.0:
            answer = 23
    elif y <= 83333333.3333:
        if x <= 16666666.6667:
            answer = 24
        elif x <= 33333333.3333:
            answer = 25
        elif x <= 50000000.0:
            answer = 26
        elif x <= 66666666.6667:
            answer = 27
        elif x <= 83333333.3333:
            answer = 28
        elif x <= 100000000.0:
            answer = 29
    elif y <= 100000000.0:
        if x <= 16666666.6667:
            answer = 30
        elif x <= 33333333.3333:
            answer = 31
        elif x <= 50000000.0:
            answer = 32
        elif x <= 66666666.6667:
            answer = 33
        elif x <= 83333333.3333:
            answer = 34
        elif x <= 100000000.0:
            answer = 35
    return answer

I have tried many different combinations of x & y, but it always returns -1. Why? I used this exact code in another program and it worked there.

These are the values that the other program with the same code put these x & y values:

x = 21659939 y = 42211657 put into cell 13

x = 30336851 y = 58758061 put into cell 19

Thank you.