We look at the division of 821963 by 81 
We're looking to find how many times 81 goes into 821963.

On to step 1:
8 divided by 81 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 81

On to step 2:
The number 81 fits into 82 1 times, leaving a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 1 after subtracting 81 from 82.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 81

Let's proceed to step 3:
The number 81 fits into 11 0 times, leaving a remainder of 11.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 11, we end up with 11.
Include the next digit (9) from the dividend after 11, then repeat: 119 / 81

Going ahead to step 4:
If we divide 119 by 81, we get 1 and a remainder of 38.
The next digit of our result is 1. 
Result so far: 101.0
The remainder is 38 after subtracting 81 from 119.
Include the next digit (6) from the dividend after 38, then repeat: 386 / 81

Step 5:
81 can be fit into 386 4 times, resulting in a remainder of 62.
The next digit of our result is 4. 
Result so far: 1014.0
Subtracting 324 from 386 leaves us with 62.
Fetch the next digit (3) from the dividend, attach it to 62 and continue: 623 / 81

On to step 6:
When dividing 623 by 81, we get 7 with a remainder of 56.
Record the quotient 7 as the next digit in the result. 
Result so far: 10147.0
If we take 567 away from 623, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 7:
When dividing 560 by 81, we get 6 with a remainder of 74.
Use 6 as the next digit of our solution. 
Result so far: 10147.6
Subtracting 486 from 560 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 8:
The number 81 fits into 740 9 times, leaving a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 10147.69
Subtracting 729 from 740 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 9:
81 goes into 110 1 times with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 10147.691
Deduct 81 from 110 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 10:
When dividing 290 by 81, we get 3 with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 10147.6913
Deduct 243 from 290 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 11:
81 can be fit into 470 5 times, resulting in a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 10147.69135
Subtract 405 from 470 to 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.

Step 12:
81 goes into 650 8 times with a remainder of 2.
The next digit of our result is 8. 
Result so far: 10147.691358
Deduct 648 from 650 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 13:
The number 81 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 10147.691358
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 14:
When dividing 200 by 81, we get 2 with a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 10147.69135802
Deduct 162 from 200 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Our division results in 10147.69135802 with a remaining 3.8e-08.