A number divided by 9 gives 6. If you write out your 9 times table you have:
1*9=9
2*9=18
3*9=27
4*9=36
5*9=45
6*9=54
7*9=63
8*9=72
9*9=81
10*9=90
Right? See anything with 6 and 9? 6*9=54. This tells you, for example, that if you gave $6 to each of 9 people you would give out $54 altogether. But it also tells you that if you had $54 you could divide it up so that each receives $6. It doesn't have to be money. It could be M&Ms. And you could divide $54 between 6 people so that they had $9 each, or M&Ms or whatever. The same rule applies. Division is the reverse process of multiplication. 6*9=54 can also be written 6=54/9 or 9=54/6. Know your multiplication tables and you'll be OK. (You could also have written out your 6 times table, because 9*6=54.)