395927 ÷ 21 
We want to divide 395927 by 21.

On to step 1:
21 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 21

Advancing to step 2:
If we divide 39 by 21, we get 1 and a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 18 after subtracting 21 from 39.
Include the next digit (5) from the dividend after 18, then repeat: 185 / 21

Going ahead to step 3:
21 can be fit into 185 8 times, resulting in a remainder of 17.
Write down 8 as next digit of the result. 
Result so far: 18.0
Deduct 168 from 185 and we're left with 17.
Take the next digit (9) from the dividend and append it to 17, then repeat: 179 / 21

Let's proceed to step 4:
When dividing 179 by 21, we get 8 with a remainder of 11.
Write down 8 as next digit of the result. 
Result so far: 188.0
Deduct 168 from 179 and we're left with 11.
Fetch the next digit (2) from the dividend, attach it to 11 and continue: 112 / 21

Going ahead to step 5:
The number 21 fits into 112 5 times, leaving a remainder of 7.
The number 5 becomes the next digit in our result. 
Result so far: 1885.0
Deduct 105 from 112 and we're left with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 21

Going ahead to step 6:
21 goes into 77 3 times with a remainder of 14.
The next digit of our result is 3. 
Result so far: 18853.0
Deduct 63 from 77 and we're left 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.

Moving on to step 7:
21 goes into 140 6 times with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 18853.6
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.

Going ahead to step 8:
The number 21 fits into 140 6 times, leaving a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 18853.66
If we subtract 126 from 140, we 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.

Our division results in 18853.66 with a remaining 0.014.