How do i find the number of times a word occurs in a string on python? My code works only partially

So for example if i want to know the number of times hello occurs in this word: hellohellothere, my code will give me 2 which is correct. But if i were to have hellotherehello, my code will not give me 2, which means i think there is something wrong with my second for loop. My code counts the number of letters in the string, and then i divide it by the length of the string to give how many times the string actually occurs, i don't think that really is the problem though.

here is the code.

word = input("Enter a word: ")
find = input("Enter string to find")
count = int(0)

for x in range(0, len(word)-len(find)):
if word[x] == find[0]:
    for i in range(0, len(find)):
        if word[x+i] == find[i]:
            count += 1
        else:  break

count = count/len(find)

print("Number of times it occurs is: ", count)