We're dividing 21027 by 63 
Our goal is to divide 21027 by 63.

Let's proceed to step 1:
2 divided by 63 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 63

Advancing to step 2:
21 divided by 63 is 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Fetch the next digit (0) from the dividend, attach it to 21 and continue: 210 / 63

On to step 3:
The number 63 fits into 210 3 times, leaving a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 189 away from 210, we end up with 21.
Append the next digit (2) from the dividend to 21 and continue with: 212 / 63

Going ahead to step 4:
The number 63 fits into 212 3 times, leaving a remainder of 23.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
The remainder is 23 after subtracting 189 from 212.
Include the next digit (7) from the dividend after 23, then repeat: 237 / 63

Step 5:
63 can be fit into 237 3 times, resulting in a remainder of 48.
Put 3 as the next digit of the answer. 
Result so far: 333.0
If we subtract 189 from 237, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 6:
If we divide 480 by 63, we get 7 and a remainder of 39.
The next digit of our result is 7. 
Result so far: 333.7
If we subtract 441 from 480, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 7:
63 can be fit into 390 6 times, resulting in a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 333.76
Subtract 378 from 390 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 8:
63 goes into 120 1 times with a remainder of 57.
Use 1 as the next digit of our solution. 
Result so far: 333.761
Subtract 63 from 120 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 9:
When dividing 570 by 63, we get 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 333.7619
Deduct 567 from 570 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 10:
If we divide 30 by 63, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 333.7619
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 11:
63 can be fit into 300 4 times, resulting in a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 333.761904
If we take 252 away from 300, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 12:
When dividing 480 by 63, we get 7 with a remainder of 39.
Write down 7 as next digit of the result. 
Result so far: 333.7619047
Subtracting 441 from 480 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 13:
63 can be fit into 390 6 times, resulting in a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 333.76190476
Subtract 378 from 390 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 333.76190476 with a remaining 1.2e-08.