Expanding directories to include spaces within Bash

I have written a code to search for a word recursively with a file system and all it's subdirectories. While it works for the most part, it is having trouble searching folders that contain spaces, e.g. it will find the search word within a directory "Bash_Exercises" but not "Bash Exercises". I know, from the courses I have taken in Bash, it has something to do with utilizing "" to recognize the entire string, but no matter where I put the "" I can't seem to search the folders that have spaces in their name. I figured that I am overlooking something so small, and just wanted a second pair of eyes.

#! /bin/bash

# Navigate to the home directory

cd /Users/michael/desktop

# Ask for word to search

read -p "What word would you like to search for? " word
echo ""

#Find all directories

for i in $(find . -type d)

do

#In each directory execute the following

    #In each directory run a loop on all contents

    for myfile in "$i"/* ; 
    do

        #If myfile is a file, not a directory or a shell script, echo the file name and line number

        if [[ -f "$myfile" ]]; then

            #Store grep within the varible check

            check=$(grep -ni "$word" "$myfile")

            #Use an if to see if the variable "check" is empty, indicating the search word was not found

            if [[ -n $check ]]; then

                #If check is not empty, echo the folder location, the file name within the folder, and the line where the text shows up

                echo "File location: $myfile"
                echo "$check"
                echo ""
                echo "------------------------"
                echo ""

            fi

        fi

    done

done

Just as a frame of reference, I am very new to Bash, all self taught through online courses, which can only help so much until you get into non-course examples. I appreciate any and all help.