I was having the following error today on a woocommerce enabled website:
Division by zero in woocommerce/content-product.php on line 33
To Fix this issue:
1.) Navigate to Appearance > customize > section Woocommerce
2.) Change the selected column amount, grid style, and products per page.
*really just changing one will work, then save. This change is all you need to do, you can even change back to the original layout, woocommerce just needed to be saved in a different format.