91016680 ÷ 999 
We want to divide 91016680 by 999.

Going ahead to step 1:
999 goes into 9 0 times with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 999

On to step 2:
91 divided by 999 is 0 with a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 91 leaves us with 91.
Grab the next digit (0) from the dividend, add it to 91, then carry on: 910 / 999

Let's proceed to step 3:
999 goes into 910 0 times with a remainder of 910.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 910 leaves us with 910.
Grab the next digit (1) from the dividend, add it to 910, then carry on: 9101 / 999

Going ahead to step 4:
999 can be fit into 9101 9 times, resulting in a remainder of 110.
The next digit of our result is 9. 
Result so far: 9.0
If we take 8991 away from 9101, we end up with 110.
Bring next digit (6) of the dividend behind the 110 and repeat the process: 1106 / 999

Advancing to step 5:
The number 999 fits into 1106 1 times, leaving a remainder of 107.
Put 1 as the next digit of the answer. 
Result so far: 91.0
The remainder is 107 after subtracting 999 from 1106.
Grab the next digit (6) from the dividend, add it to 107, then carry on: 1076 / 999

Advancing to step 6:
The number 999 fits into 1076 1 times, leaving a remainder of 77.
Record the quotient 1 as the next digit in the result. 
Result so far: 911.0
If we take 999 away from 1076, we end up with 77.
Include the next digit (8) from the dividend after 77, then repeat: 778 / 999

Advancing to step 7:
778 divided by 999 is 0 with a remainder of 778.
Use 0 as the next digit of our solution. 
Result so far: 9110.0
If we take 0 away from 778, we end up with 778.
Grab the next digit (0) from the dividend, add it to 778, then carry on: 7780 / 999

Step 8:
7780 divided by 999 is 7 with a remainder of 787.
The next digit of our result is 7. 
Result so far: 91107.0
If we subtract 6993 from 7780, we get 787.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7870, and continue the process.

Going ahead to step 9:
999 can be fit into 7870 7 times, resulting in a remainder of 877.
Record the quotient 7 as the next digit in the result. 
Result so far: 91107.7
Subtract 6993 from 7870 to get 877.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8770, and continue the process.

On to step 10:
999 goes into 8770 8 times with a remainder of 778.
Write down 8 as next digit of the result. 
Result so far: 91107.78
Subtracting 7992 from 8770 leaves us with 778.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7780, and continue the process.

Advancing to step 11:
999 goes into 7780 7 times with a remainder of 787.
Put 7 as the next digit of the answer. 
Result so far: 91107.787
If we take 6993 away from 7780, we end up with 787.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7870, and continue the process.

Let's proceed to step 12:
If we divide 7870 by 999, we get 7 and a remainder of 877.
The next digit of our result is 7. 
Result so far: 91107.7877
If we take 6993 away from 7870, we end up with 877.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8770, and continue the process.

The final result is 91107.7877 with a remainder of 0.00877.