We look at the division of 203642 by 21 
We want to divide 203642 by 21.

Moving on to step 1:
2 divided by 21 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 21

Step 2:
The number 21 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Fetch the next digit (3) from the dividend, attach it to 20 and continue: 203 / 21

Going ahead to step 3:
21 goes into 203 9 times with a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we take 189 away from 203, we end up with 14.
Grab the next digit (6) from the dividend, add it to 14, then carry on: 146 / 21

Let's proceed to step 4:
When dividing 146 by 21, we get 6 with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 96.0
The remainder is 20 after subtracting 126 from 146.
Include the next digit (4) from the dividend after 20, then repeat: 204 / 21

Advancing to step 5:
When dividing 204 by 21, we get 9 with a remainder of 15.
The next digit of our result is 9. 
Result so far: 969.0
Subtract 189 from 204 to get 15.
Fetch the next digit (2) from the dividend, attach it to 15 and continue: 152 / 21

Going ahead to step 6:
152 divided by 21 is 7 with a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 9697.0
If we take 147 away from 152, we end up with 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 7:
50 divided by 21 is 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 9697.2
Subtracting 42 from 50 leaves us with 8.
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 8:
21 can be fit into 80 3 times, resulting in a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 9697.23
The remainder is 17 after subtracting 63 from 80.
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 9:
If we divide 170 by 21, we get 8 and a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 9697.238
If we subtract 168 from 170, we 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.

Step 10:
21 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 9697.238
Subtracting 0 from 20 leaves us 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 11:
200 divided by 21 is 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 9697.23809
The remainder is 11 after subtracting 189 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 12:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 9697.238095
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.

Advancing to step 13:
When dividing 50 by 21, we get 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 9697.2380952
Subtract 42 from 50 to get 8.
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 14:
21 can be fit into 80 3 times, resulting in a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 9697.23809523
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.

In conclusion, the division gives 9697.23809523 with a balance of 1.7e-08.