We look at the division of 826832 by 21 
Our goal is to divide 826832 by 21.

Step 1:
8 divided by 21 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
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 / 21

Advancing to step 2:
82 divided by 21 is 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 63 from 82 to get 19.
Take the next digit (6) from the dividend and append it to 19, then repeat: 196 / 21

Let's proceed to step 3:
If we divide 196 by 21, we get 9 and a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 39.0
If we subtract 189 from 196, we get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 21

Moving on to step 4:
The number 21 fits into 78 3 times, leaving a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 393.0
Subtracting 63 from 78 leaves us with 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 21

On to step 5:
21 goes into 153 7 times with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 3937.0
Subtracting 147 from 153 leaves us with 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 21

On to step 6:
When dividing 62 by 21, we get 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 39372.0
If we take 42 away from 62, we end up 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.

Moving on to step 7:
21 goes into 200 9 times with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 39372.9
If we subtract 189 from 200, we get 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 8:
21 goes into 110 5 times with a remainder of 5.
The next digit of our result is 5. 
Result so far: 39372.95
If we subtract 105 from 110, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
If we divide 50 by 21, we get 2 and a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 39372.952
If we take 42 away from 50, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 10:
21 can be fit into 80 3 times, resulting in a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 39372.9523
The remainder is 17 after subtracting 63 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 11:
21 can be fit into 170 8 times, resulting in a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 39372.95238
Subtracting 168 from 170 leaves us 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.

Step 12:
The number 21 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 39372.95238
The remainder is 20 after subtracting 0 from 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 13:
If we divide 200 by 21, we get 9 and a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 39372.9523809
Deduct 189 from 200 and we're left 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.

Step 14:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 39372.95238095
The remainder is 5 after subtracting 105 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 39372.95238095, with a leftover of 5e-09.