Hello grewal7634,

It would be much easier to assist you by providing a working example of your code here. But since this is not available this is my explanation and best approach to solve your problem.

As everybody answered already with examples your error comes from dividing a number with zero.

The process can not be completed.

I assume that in your calculation somewhere you have a syntax error and you divide a number with zero. I would suggest to insert print statements at every step of your calculation so you can detect where the error is coming from.

This is the first result that I found when I insert your error on Google What does the error 'Illegal division by zero' mean?. I think you will find more information there with some code that maybe assist you to understand what is the error or how to find your error.

Hope this helps.