Question no more as there are ways to clean the hard to reach insides of the toaster.
A safe trick is to use a pastry brush when removing the crumbs out of the inside racks. Just be sure to unplug everything before brushing.
As a final step, you can also turn your toaster upside down and shake away any further leftover crumbs.
It's a good idea to do this regularly as the kitchen appliance can unnecessarily set off your fire alarm due to the burning of leftover bread crumbs.