We're dividing 471926 by 21 
We want to figure out the number of times 471926 can be divided by 21.

On to step 1:
4 divided by 21 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (7) from the dividend and append it to 4, then repeat: 47 / 21

Moving on to step 2:
47 divided by 21 is 2 with a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 42 from 47 and we're left with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 21

Advancing to step 3:
The number 21 fits into 51 2 times, leaving a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtracting 42 from 51 leaves us with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 21

Advancing to step 4:
99 divided by 21 is 4 with a remainder of 15.
Record the quotient 4 as the next digit in the result. 
Result so far: 224.0
If we take 84 away from 99, we end up with 15.
Bring next digit (2) of the dividend behind the 15 and repeat the process: 152 / 21

Let's proceed to step 5:
21 can be fit into 152 7 times, resulting in a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 2247.0
Subtract 147 from 152 to get 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 21

Going ahead to step 6:
If we divide 56 by 21, we get 2 and a remainder of 14.
The next digit of our result is 2. 
Result so far: 22472.0
If we take 42 away from 56, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 7:
The number 21 fits into 140 6 times, leaving a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 22472.6
Subtract 126 from 140 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 8:
21 can be fit into 140 6 times, resulting in a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 22472.66
Subtract 126 from 140 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The quotient of the division is 22472.66, and the remainder is 0.014.