Let's divide 91020229 by 991
We want to divide 91020229 by 991.

Step 1:
If we divide 9 by 991, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 991

Going ahead to step 2:
The number 991 fits into 91 0 times, leaving a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Bring next digit (0) of the dividend behind the 91 and repeat the process: 910 / 991

On to step 3:
The number 991 fits into 910 0 times, leaving a remainder of 910.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 910 and we're left with 910.
Append the next digit (2) from the dividend to 910 and continue with: 9102 / 991

Step 4:
If we divide 9102 by 991, we get 9 and a remainder of 183.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtract 8919 from 9102 to get 183.
Bring next digit (0) of the dividend behind the 183 and repeat the process: 1830 / 991

Advancing to step 5:
If we divide 1830 by 991, we get 1 and a remainder of 839.
Write down 1 as next digit of the result. 
Result so far: 91.0
Deduct 991 from 1830 and we're left with 839.
Include the next digit (2) from the dividend after 839, then repeat: 8392 / 991

Step 6:
If we divide 8392 by 991, we get 8 and a remainder of 464.
Record the quotient 8 as the next digit in the result. 
Result so far: 918.0
Deduct 7928 from 8392 and we're left with 464.
Fetch the next digit (2) from the dividend, attach it to 464 and continue: 4642 / 991

On to step 7:
If we divide 4642 by 991, we get 4 and a remainder of 678.
Use 4 as the next digit of our solution. 
Result so far: 9184.0
Subtracting 3964 from 4642 leaves us with 678.
Append the next digit (9) from the dividend to 678 and continue with: 6789 / 991

Moving on to step 8:
6789 divided by 991 is 6 with a remainder of 843.
The number 6 becomes the next digit in our result. 
Result so far: 91846.0
The remainder is 843 after subtracting 5946 from 6789.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8430, and continue the process.

Advancing to step 9:
The number 991 fits into 8430 8 times, leaving a remainder of 502.
The next digit of our result is 8. 
Result so far: 91846.8
The remainder is 502 after subtracting 7928 from 8430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Step 10:
991 can be fit into 5020 5 times, resulting in a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 91846.85
If we subtract 4955 from 5020, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 11:
When dividing 650 by 991, we get 0 with a remainder of 650.
Use 0 as the next digit of our solution. 
Result so far: 91846.85
If we take 0 away from 650, we end up with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Let's proceed to step 12:
The number 991 fits into 6500 6 times, leaving a remainder of 554.
The next digit of our result is 6. 
Result so far: 91846.8506
The remainder is 554 after subtracting 5946 from 6500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

On to step 13:
If we divide 5540 by 991, we get 5 and a remainder of 585.
Use 5 as the next digit of our solution. 
Result so far: 91846.85065
The remainder is 585 after subtracting 4955 from 5540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Step 14:
991 can be fit into 5850 5 times, resulting in a remainder of 895.
Use 5 as the next digit of our solution. 
Result so far: 91846.850655
If we take 4955 away from 5850, we end up with 895.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8950, and continue the process.

In conclusion, the division gives 91846.850655 with a balance of 8.95e-05.