There are 544,320 different possibilities.
They range all the way from 1,023,456 to 9,876,543 .
98765432
9876543
It is 98765.
I believe it is: 987,654
987654
98765432
123,456,789
9876543
9876543
It is 98765.
987
I believe it is: 987,654
987654
987654321
10234567
9876543
98765