Let's divide 658427 by 21
We're looking to find how many times 21 goes into 658427.

Moving on to step 1:
21 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 21

Let's proceed to step 2:
If we divide 65 by 21, we get 3 and a remainder of 2.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 63 from 65 leaves us with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 21

Let's proceed to step 3:
If we divide 28 by 21, we get 1 and a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Subtract 21 from 28 to get 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 21

Going ahead to step 4:
21 goes into 74 3 times with a remainder of 11.
The next digit of our result is 3. 
Result so far: 313.0
Subtract 63 from 74 to get 11.
Bring next digit (2) of the dividend behind the 11 and repeat the process: 112 / 21

Let's proceed to step 5:
When dividing 112 by 21, we get 5 with a remainder of 7.
Put 5 as the next digit of the answer. 
Result so far: 3135.0
Subtracting 105 from 112 leaves us with 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 21

Moving on to step 6:
21 can be fit into 77 3 times, resulting in a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 31353.0
If we take 63 away from 77, 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.

On to step 7:
140 divided by 21 is 6 with a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 31353.6
If we take 126 away from 140, 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.

Let's proceed to step 8:
21 can be fit into 140 6 times, resulting in a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 31353.66
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.

The final result is 31353.66 with a remainder of 0.014.