Let's divide 991321 by 81
We want to divide 991321 by 81.

Going ahead to step 1:
The number 81 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 81

Going ahead to step 2:
The number 81 fits into 99 1 times, leaving a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 81 away from 99, we end up with 18.
Include the next digit (1) from the dividend after 18, then repeat: 181 / 81

Let's proceed to step 3:
81 can be fit into 181 2 times, resulting in a remainder of 19.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 162 from 181 and we're left with 19.
Append the next digit (3) from the dividend to 19 and continue with: 193 / 81

Let's proceed to step 4:
The number 81 fits into 193 2 times, leaving a remainder of 31.
The number 2 becomes the next digit in our result. 
Result so far: 122.0
The remainder is 31 after subtracting 162 from 193.
Append the next digit (2) from the dividend to 31 and continue with: 312 / 81

Moving on to step 5:
81 can be fit into 312 3 times, resulting in a remainder of 69.
Write down 3 as next digit of the result. 
Result so far: 1223.0
The remainder is 69 after subtracting 243 from 312.
Fetch the next digit (1) from the dividend, attach it to 69 and continue: 691 / 81

Let's proceed to step 6:
The number 81 fits into 691 8 times, leaving a remainder of 43.
Put 8 as the next digit of the answer. 
Result so far: 12238.0
Deduct 648 from 691 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 7:
81 goes into 430 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 12238.5
If we take 405 away from 430, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 8:
If we divide 250 by 81, we get 3 and a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 12238.53
Deduct 243 from 250 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 9:
81 goes into 70 0 times with a remainder of 70.
The next digit of our result is 0. 
Result so far: 12238.53
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 10:
81 can be fit into 700 8 times, resulting in a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 12238.5308
Subtract 648 from 700 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 11:
The number 81 fits into 520 6 times, leaving a remainder of 34.
Put 6 as the next digit of the answer. 
Result so far: 12238.53086
If we subtract 486 from 520, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 12:
When dividing 340 by 81, we get 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 12238.530864
Deduct 324 from 340 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 13:
When dividing 160 by 81, we get 1 with a remainder of 79.
The next digit of our result is 1. 
Result so far: 12238.5308641
Deduct 81 from 160 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Advancing to step 14:
81 can be fit into 790 9 times, resulting in a remainder of 61.
Use 9 as the next digit of our solution. 
Result so far: 12238.53086419
Deduct 729 from 790 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

After the division, we end up with 12238.53086419 and a remainder of 6.1e-08.