We're dividing 484877 by 21 
Let's see how many times 21 fits into 484877.

Advancing to step 1:
21 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 21

Let's proceed to step 2:
48 divided by 21 is 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 42 away from 48, we end up with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 21

Going ahead to step 3:
64 divided by 21 is 3 with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 23.0
If we subtract 63 from 64, we get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 21

On to step 4:
18 divided by 21 is 0 with a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 230.0
The remainder is 18 after subtracting 0 from 18.
Take the next digit (7) from the dividend and append it to 18, then repeat: 187 / 21

Advancing to step 5:
The number 21 fits into 187 8 times, leaving a remainder of 19.
Record the quotient 8 as the next digit in the result. 
Result so far: 2308.0
Subtract 168 from 187 to get 19.
Take the next digit (7) from the dividend and append it to 19, then repeat: 197 / 21

Step 6:
197 divided by 21 is 9 with a remainder of 8.
The next digit of our result is 9. 
Result so far: 23089.0
The remainder is 8 after subtracting 189 from 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 7:
If we divide 80 by 21, we get 3 and a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 23089.3
If we take 63 away from 80, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 8:
The number 21 fits into 170 8 times, leaving a remainder of 2.
The next digit of our result is 8. 
Result so far: 23089.38
Subtract 168 from 170 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
The number 21 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 23089.38
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 10:
When dividing 200 by 21, we get 9 with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 23089.3809
If we take 189 away from 200, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 11:
If we divide 110 by 21, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 23089.38095
If we subtract 105 from 110, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 12:
The number 21 fits into 50 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 23089.380952
The remainder is 8 after subtracting 42 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 13:
The number 21 fits into 80 3 times, leaving a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 23089.3809523
If we subtract 63 from 80, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 14:
21 goes into 170 8 times with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 23089.38095238
The remainder is 2 after subtracting 168 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final outcome is 23089.38095238, with a leftover of 2e-09.