Anything can be divided by 9, but it might not go in evenly. why not try the 9 times table for starters
9
? Divided by 9 = 200
what divided by 9 = 8.
9 divided by x
9 divided by 9/4 = 4
9+4+5=18 which can be divided by 9 so 945 can be divided by nine.
9
9
0.1111
3
9 divided into 89 = 0.10112359550561797
27 divided to 9 = 3