Let's divide 836152 by 21
Our goal is to divide 836152 by 21.

Let's proceed to step 1:
When dividing 8 by 21, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 21

Going ahead to step 2:
83 divided by 21 is 3 with a remainder of 20.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 63 from 83, we get 20.
Take the next digit (6) from the dividend and append it to 20, then repeat: 206 / 21

On to step 3:
If we divide 206 by 21, we get 9 and a remainder of 17.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
If we subtract 189 from 206, we get 17.
Append the next digit (1) from the dividend to 17 and continue with: 171 / 21

Let's proceed to step 4:
When dividing 171 by 21, we get 8 with a remainder of 3.
The next digit of our result is 8. 
Result so far: 398.0
Subtract 168 from 171 to get 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 21

Going ahead to step 5:
When dividing 35 by 21, we get 1 with a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 3981.0
Subtract 21 from 35 to get 14.
Append the next digit (2) from the dividend to 14 and continue with: 142 / 21

Advancing to step 6:
The number 21 fits into 142 6 times, leaving a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 39816.0
If we take 126 away from 142, we end up 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.

Let's proceed to step 7:
If we divide 160 by 21, we get 7 and a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 39816.7
The remainder is 13 after subtracting 147 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 8:
The number 21 fits into 130 6 times, leaving a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 39816.76
Subtracting 126 from 130 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
If we divide 40 by 21, we get 1 and a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 39816.761
Deduct 21 from 40 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 10:
21 can be fit into 190 9 times, resulting in a remainder of 1.
The next digit of our result is 9. 
Result so far: 39816.7619
Subtracting 189 from 190 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 11:
21 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 39816.7619
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 12:
100 divided by 21 is 4 with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 39816.761904
If we take 84 away from 100, we end up 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.

Let's proceed to step 13:
21 goes into 160 7 times with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 39816.7619047
If we subtract 147 from 160, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 14:
If we divide 130 by 21, we get 6 and a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 39816.76190476
If we subtract 126 from 130, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

In conclusion, the division gives 39816.76190476 with a balance of 4e-09.