Your example is quite vague (e.g. are we dealing with an integer number of items and processes?) and in general if something looks kinda like a division it does

Your example is quite vague (e.g. are we dealing with an integer number of items and processes?) and in general if something looks kinda like a division it doesn't mean it is exactly division. Just like in math, we have the power to simply say: if COND -> divide normally, else -> do something else.