We look at the division of 822906 by 21 
We're looking to find how many times 21 goes into 822906.

Step 1:
The number 21 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 21

Moving on 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
If we take 63 away from 82, we end up with 19.
Bring next digit (2) of the dividend behind the 19 and repeat the process: 192 / 21

Let's proceed to step 3:
When dividing 192 by 21, we get 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
If we take 189 away from 192, we end up with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 21

Let's proceed to step 4:
The number 21 fits into 39 1 times, leaving a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 391.0
Subtracting 21 from 39 leaves us with 18.
Grab the next digit (0) from the dividend, add it to 18, then carry on: 180 / 21

Advancing to step 5:
180 divided by 21 is 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 3918.0
If we subtract 168 from 180, we get 12.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 21

On to step 6:
126 divided by 21 is 6 with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 39186.0
Subtract 126 from 126 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
21 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 39186.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 21, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 39186.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 39186.0, and the remainder is 0.0.