We're dividing 824359 by 21 
We want to divide 824359 by 21.

Let's proceed to step 1:
If we divide 8 by 21, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 21

Step 2:
21 goes into 82 3 times with a remainder of 19.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 63 from 82 leaves us with 19.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 21

Step 3:
21 goes into 194 9 times with a remainder of 5.
The next digit of our result is 9. 
Result so far: 39.0
The remainder is 5 after subtracting 189 from 194.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 21

Step 4:
When dividing 53 by 21, we get 2 with a remainder of 11.
The next digit of our result is 2. 
Result so far: 392.0
If we subtract 42 from 53, we get 11.
Bring next digit (5) of the dividend behind the 11 and repeat the process: 115 / 21

Step 5:
21 can be fit into 115 5 times, resulting in a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 3925.0
Deduct 105 from 115 and we're left with 10.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 21

On to step 6:
21 can be fit into 109 5 times, resulting in a remainder of 4.
Put 5 as the next digit of the answer. 
Result so far: 39255.0
Subtracting 105 from 109 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.

Let's proceed to step 7:
21 can be fit into 40 1 times, resulting in a remainder of 19.
The next digit of our result is 1. 
Result so far: 39255.1
If we take 21 away from 40, we end up 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.

Step 8:
When dividing 190 by 21, we get 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 39255.19
Subtract 189 from 190 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 9:
21 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 39255.19
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 10:
100 divided by 21 is 4 with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 39255.1904
The remainder is 16 after subtracting 84 from 100.
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 11:
The number 21 fits into 160 7 times, leaving a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 39255.19047
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.

On to step 12:
21 can be fit into 130 6 times, resulting in a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 39255.190476
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 13:
If we divide 40 by 21, we get 1 and a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 39255.1904761
Subtracting 21 from 40 leaves us 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.

Let's proceed to step 14:
The number 21 fits into 190 9 times, leaving a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 39255.19047619
If we take 189 away from 190, we end up 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.

The final result is 39255.19047619 with a remainder of 1e-09.