89117152 divided by 991 
Our goal is to divide 89117152 by 991.

Going ahead to step 1:
8 divided by 991 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 991

Going ahead to step 2:
89 divided by 991 is 0 with a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 89, we get 89.
Bring next digit (1) of the dividend behind the 89 and repeat the process: 891 / 991

Advancing to step 3:
991 can be fit into 891 0 times, resulting in a remainder of 891.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 891 to get 891.
Include the next digit (1) from the dividend after 891, then repeat: 8911 / 991

On to step 4:
991 can be fit into 8911 8 times, resulting in a remainder of 983.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 7928 from 8911 to get 983.
Bring next digit (7) of the dividend behind the 983 and repeat the process: 9837 / 991

Let's proceed to step 5:
When dividing 9837 by 991, we get 9 with a remainder of 918.
Record the quotient 9 as the next digit in the result. 
Result so far: 89.0
The remainder is 918 after subtracting 8919 from 9837.
Include the next digit (1) from the dividend after 918, then repeat: 9181 / 991

Step 6:
9181 divided by 991 is 9 with a remainder of 262.
Write down 9 as next digit of the result. 
Result so far: 899.0
Deduct 8919 from 9181 and we're left with 262.
Grab the next digit (5) from the dividend, add it to 262, then carry on: 2625 / 991

On to step 7:
2625 divided by 991 is 2 with a remainder of 643.
The next digit of our result is 2. 
Result so far: 8992.0
Subtract 1982 from 2625 to get 643.
Take the next digit (2) from the dividend and append it to 643, then repeat: 6432 / 991

Moving on to step 8:
If we divide 6432 by 991, we get 6 and a remainder of 486.
Record the quotient 6 as the next digit in the result. 
Result so far: 89926.0
If we take 5946 away from 6432, we end up with 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Step 9:
4860 divided by 991 is 4 with a remainder of 896.
The number 4 becomes the next digit in our result. 
Result so far: 89926.4
Subtracting 3964 from 4860 leaves us with 896.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8960, and continue the process.

Going ahead to step 10:
When dividing 8960 by 991, we get 9 with a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 89926.49
If we take 8919 away from 8960, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 11:
When dividing 410 by 991, we get 0 with a remainder of 410.
Record the quotient 0 as the next digit in the result. 
Result so far: 89926.49
Deduct 0 from 410 and we're left with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

On to step 12:
The number 991 fits into 4100 4 times, leaving a remainder of 136.
Record the quotient 4 as the next digit in the result. 
Result so far: 89926.4904
Subtract 3964 from 4100 to get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 13:
1360 divided by 991 is 1 with a remainder of 369.
Record the quotient 1 as the next digit in the result. 
Result so far: 89926.49041
The remainder is 369 after subtracting 991 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Advancing to step 14:
991 goes into 3690 3 times with a remainder of 717.
Write down 3 as next digit of the result. 
Result so far: 89926.490413
Subtracting 2973 from 3690 leaves us with 717.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7170, and continue the process.

Moving on to step 15:
The number 991 fits into 7170 7 times, leaving a remainder of 233.
The number 7 becomes the next digit in our result. 
Result so far: 89926.4904137
If we take 6937 away from 7170, we end up with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Going ahead to step 16:
The number 991 fits into 2330 2 times, leaving a remainder of 348.
Put 2 as the next digit of the answer. 
Result so far: 89926.49041372
Subtracting 1982 from 2330 leaves us with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

In conclusion, the division gives 89926.49041372 with a balance of 3.48e-07.