20921376 divided by 831 
Our goal is to divide 20921376 by 831.

Advancing to step 1:
When dividing 2 by 831, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 831

Let's proceed to step 2:
20 divided by 831 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Take the next digit (9) from the dividend and append it to 20, then repeat: 209 / 831

Advancing to step 3:
831 can be fit into 209 0 times, resulting in a remainder of 209.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 209 and we're left with 209.
Grab the next digit (2) from the dividend, add it to 209, then carry on: 2092 / 831

Advancing to step 4:
831 goes into 2092 2 times with a remainder of 430.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 1662 from 2092 leaves us with 430.
Append the next digit (1) from the dividend to 430 and continue with: 4301 / 831

Advancing to step 5:
When dividing 4301 by 831, we get 5 with a remainder of 146.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
Subtract 4155 from 4301 to get 146.
Bring next digit (3) of the dividend behind the 146 and repeat the process: 1463 / 831

Step 6:
831 can be fit into 1463 1 times, resulting in a remainder of 632.
The next digit of our result is 1. 
Result so far: 251.0
The remainder is 632 after subtracting 831 from 1463.
Grab the next digit (7) from the dividend, add it to 632, then carry on: 6327 / 831

On to step 7:
831 goes into 6327 7 times with a remainder of 510.
Write down 7 as next digit of the result. 
Result so far: 2517.0
Subtract 5817 from 6327 to get 510.
Grab the next digit (6) from the dividend, add it to 510, then carry on: 5106 / 831

Step 8:
5106 divided by 831 is 6 with a remainder of 120.
Write down 6 as next digit of the result. 
Result so far: 25176.0
Subtract 4986 from 5106 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 9:
If we divide 1200 by 831, we get 1 and a remainder of 369.
Write down 1 as next digit of the result. 
Result so far: 25176.1
Subtract 831 from 1200 to get 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Step 10:
831 goes into 3690 4 times with a remainder of 366.
The next digit of our result is 4. 
Result so far: 25176.14
Subtract 3324 from 3690 to get 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Let's proceed to step 11:
If we divide 3660 by 831, we get 4 and a remainder of 336.
Record the quotient 4 as the next digit in the result. 
Result so far: 25176.144
Subtract 3324 from 3660 to get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

The quotient of the division is 25176.144, and the remainder is 0.0336.