We divide 829768 by 21
We're looking to find how many times 21 goes into 829768.

On to step 1:
If we divide 8 by 21, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 21

Advancing to step 2:
82 divided by 21 is 3 with a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 63 from 82 leaves us with 19.
Take the next digit (9) from the dividend and append it to 19, then repeat: 199 / 21

On to step 3:
21 goes into 199 9 times with a remainder of 10.
Put 9 as the next digit of the answer. 
Result so far: 39.0
Subtracting 189 from 199 leaves us with 10.
Include the next digit (7) from the dividend after 10, then repeat: 107 / 21

Moving on to step 4:
When dividing 107 by 21, we get 5 with a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 395.0
If we take 105 away from 107, we end up with 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 21

Moving on to step 5:
21 can be fit into 26 1 times, resulting in a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 3951.0
If we subtract 21 from 26, we get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 21

Advancing to step 6:
The number 21 fits into 58 2 times, leaving a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 39512.0
If we subtract 42 from 58, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 7:
21 can be fit into 160 7 times, resulting in a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 39512.7
Subtract 147 from 160 to 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.

Let's proceed to 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: 39512.76
The remainder is 4 after subtracting 126 from 130.
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 9:
The number 21 fits into 40 1 times, leaving a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 39512.761
Subtract 21 from 40 to get 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 10:
The number 21 fits into 190 9 times, leaving a remainder of 1.
The next digit of our result is 9. 
Result so far: 39512.7619
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.

On to 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: 39512.7619
Subtracting 0 from 10 leaves us 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.

Going ahead to step 12:
When dividing 100 by 21, we get 4 with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 39512.761904
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.

Moving on to step 13:
21 can be fit into 160 7 times, resulting in a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 39512.7619047
Subtracting 147 from 160 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 14:
If we divide 130 by 21, we get 6 and a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 39512.76190476
Subtract 126 from 130 to 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.

The final result is 39512.76190476 with a remainder of 4e-09.