This isn't related to the question at hand, but one of the most interesting ways to handle this was in a smalltalk app i saw, which turned the result into a cus

This isn't related to the question at hand, but one of the most interesting ways to handle this was in a smalltalk app i saw, which turned the result into a custom NaN and stuffed the execution context into the variable so even if you restored it from the database, you'd know exactly where the divide by zero occurred. That's different from all the other languages where NaNs propagate but you don't know their origin.