Zero Division Error

[moga2003]

I had thought of that, however I have to use this equation: round( tally / self.word_count * 1000). Since it is supposed to return a value due to the multiple text strings being used, I do not understand why it would return a zero value. Can someone explain?
Since I am new to Python, maybe am I not writing it correctly for it to turn the text into integers properly? I'm still learning.