86.7 divided by what is 10.2
this looks scary so why don't you replace those horrible numbers with some nnice ones and work out how to get the answer then...
6 divided by what is 3
1) what is the answer?
2) How do you put 6 and 3 together to get the answer?
3) now do the same thing with your numbers - what do you get? (you'll need to use a calculator)
4) check the answer by doing the division. :))