Burnt Microwave

So a lot was going on the other night and we had music playing really loud and we did not notice that Savanna decided to make herself some popcorn in the microwave. It was actually cute that she tried to make it on her own. She pushed the table chair over and was able to put it in the right way and turn it on. Unfortunately she put the time on her 50 minutes. Luckily she did not burn the house down and we noticed after six minutes that there was smoke coming out of the microwave (We are surprised that the smoke alarm did not go off). Anyway, but the microwave is now all orange and burnt. Does anyone know how to get this out or is our microwave just going to stay looking like that? We tried regular household cleaners that did not work. Has this happened to anyone? Any ideas?