Question

What number do you divide by 12 to get 9

Answer 1

Work backwards. 12*9=108
check: 108/12=9

Answer 2

Well I don't know.  Let's figure it out together.

You said (a number) divided by 12 gives you 9 .

A fraction is the easiest way to show division, so
you can write this equation:

               (number) / 12  =  9

Now you can multiply each side of the equation by  12 .
When you do that, you have ...

                 number   =   9 x 12

                 number   =    108 .

Now you know how to find it.  That's even better than just
having the answer.