We look at the division of 487914 by 21 
Our goal is to divide 487914 by 21.

Moving on to step 1:
If we divide 4 by 21, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (8) of the dividend behind the 4 and repeat the process: 48 / 21

Let's proceed to step 2:
The number 21 fits into 48 2 times, leaving a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 42 from 48, we get 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 21

Step 3:
When dividing 67 by 21, we get 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 23.0
The remainder is 4 after subtracting 63 from 67.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 21

Step 4:
49 divided by 21 is 2 with a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 232.0
Subtract 42 from 49 to get 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 21

Advancing to step 5:
71 divided by 21 is 3 with a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 2323.0
If we take 63 away from 71, we end up with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 21

On to step 6:
21 goes into 84 4 times with a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 23234.0
If we subtract 84 from 84, we 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.

On to step 7:
21 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 23234.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
The number 21 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 23234.0
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.

Our division results in 23234.0 with a remaining 0.0.