9999999
The greatest three digit number that is divisible by 7 is 994.
The difference is 90000000
9999876
9876543
9999998
The "7" digit had the greatest value because it is in the UNITS column.
greatest number9999987
The greatest 6-digit number is 999,999. The successor of this number is 1,000,000, which is the smallest 7-digit number. Therefore, when you add 1 to 999,999, you move into the next number category, transitioning from 6 to 7 digits.
7
It is 9999998.
7 * 142 = 994
9876543