806268 divided by 21 
We want to figure out the number of times 806268 can be divided by 21.

Step 1:
The number 21 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 21

Step 2:
21 can be fit into 80 3 times, resulting in a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 63 from 80 leaves us with 17.
Append the next digit (6) from the dividend to 17 and continue with: 176 / 21

Advancing to step 3:
176 divided by 21 is 8 with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 38.0
Subtracting 168 from 176 leaves us with 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 21

Moving on to step 4:
When dividing 82 by 21, we get 3 with a remainder of 19.
The number 3 becomes the next digit in our result. 
Result so far: 383.0
Subtract 63 from 82 to get 19.
Include the next digit (6) from the dividend after 19, then repeat: 196 / 21

Let's proceed to step 5:
21 can be fit into 196 9 times, resulting in a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 3839.0
Subtracting 189 from 196 leaves us with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 21

Advancing to step 6:
When dividing 78 by 21, we get 3 with a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 38393.0
If we take 63 away from 78, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 7:
When dividing 150 by 21, we get 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 38393.7
If we subtract 147 from 150, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 8:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 38393.71
If we subtract 21 from 30, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 9:
If we divide 90 by 21, we get 4 and a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 38393.714
Subtracting 84 from 90 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 10:
If we divide 60 by 21, we get 2 and a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 38393.7142
If we take 42 away from 60, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 11:
21 can be fit into 180 8 times, resulting in a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 38393.71428
If we subtract 168 from 180, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 12:
21 goes into 120 5 times with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 38393.714285
Subtracting 105 from 120 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 13:
If we divide 150 by 21, we get 7 and a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 38393.7142857
Deduct 147 from 150 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 14:
The number 21 fits into 30 1 times, leaving a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 38393.71428571
Subtracting 21 from 30 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

In conclusion, the division gives 38393.71428571 with a balance of 9e-09.