Since we want our number to be as large as possible, we have to put the largest digits in the front, in the largest places so they have more value. Therefore, our answer would be 987,654,321.
9876543
I believe it is: 987,654
987654321
9876543
98765432
9876543
987
I believe it is: 987,654
987654321
9876543
9,876,543
98765432
123,456,789
9876543
It is 98765.
0
10/99 = 0.1010... (repeating)