First of all you need to do it step by step.
how did you find 36.
6^5 = 7776 its like you multiply 6 by 6, 5 times it would give you that number
6^3 = 216 you multiply 6 by 6, 3 times it would give you that number.
and then you divided 7776 by 216 it should give you 36.
VOILA!!!!! I hope you understand that.
good luck!!!