Let's divide 528063 by 21
Let's see how many times 21 fits into 528063.

On to step 1:
21 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 21

Let's proceed to step 2:
When dividing 52 by 21, we get 2 with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 42 from 52 and we're left with 10.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 21

Advancing to step 3:
The number 21 fits into 108 5 times, leaving a remainder of 3.
Write down 5 as next digit of the result. 
Result so far: 25.0
The remainder is 3 after subtracting 105 from 108.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 21

Moving on to step 4:
21 can be fit into 30 1 times, resulting in a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 251.0
Subtract 21 from 30 to get 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 21

Let's proceed to step 5:
When dividing 96 by 21, we get 4 with a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 2514.0
The remainder is 12 after subtracting 84 from 96.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 21

Going ahead to step 6:
When dividing 123 by 21, we get 5 with a remainder of 18.
The next digit of our result is 5. 
Result so far: 25145.0
If we take 105 away from 123, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 7:
The number 21 fits into 180 8 times, leaving a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 25145.8
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
120 divided by 21 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 25145.85
Subtracting 105 from 120 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 9:
21 goes into 150 7 times with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 25145.857
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 10:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 25145.8571
If we subtract 21 from 30, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 11:
When dividing 90 by 21, we get 4 with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 25145.85714
If we subtract 84 from 90, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 12:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 25145.857142
Deduct 42 from 60 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 13:
21 goes into 180 8 times with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 25145.8571428
Subtract 168 from 180 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.

On to step 14:
When dividing 120 by 21, we get 5 with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 25145.85714285
Subtract 105 from 120 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

After the division, we end up with 25145.85714285 and a remainder of 1.5e-08.