We look at the division of 202361 by 21 
We want to figure out the number of times 202361 can be divided by 21.

Going ahead to step 1:
21 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 21

Advancing to step 2:
21 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Include the next digit (2) from the dividend after 20, then repeat: 202 / 21

Step 3:
202 divided by 21 is 9 with a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 189 from 202 to get 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 21

On to step 4:
If we divide 133 by 21, we get 6 and a remainder of 7.
Write down 6 as next digit of the result. 
Result so far: 96.0
The remainder is 7 after subtracting 126 from 133.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 21

Step 5:
When dividing 76 by 21, we get 3 with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 963.0
Deduct 63 from 76 and we're left with 13.
Grab the next digit (1) from the dividend, add it to 13, then carry on: 131 / 21

Going ahead to step 6:
131 divided by 21 is 6 with a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 9636.0
Deduct 126 from 131 and we're left 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: 9636.2
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.

Step 8:
21 goes into 80 3 times with a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 9636.23
Deduct 63 from 80 and we're left 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 9:
If we divide 170 by 21, we get 8 and a remainder of 2.
The next digit of our result is 8. 
Result so far: 9636.238
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.

Let's proceed to step 10:
20 divided by 21 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 9636.238
Deduct 0 from 20 and we're left 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.

Advancing to step 11:
If we divide 200 by 21, we get 9 and a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 9636.23809
Subtract 189 from 200 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 12:
The number 21 fits into 110 5 times, leaving a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 9636.238095
Subtract 105 from 110 to 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.

Step 13:
When dividing 50 by 21, we get 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 9636.2380952
If we subtract 42 from 50, we 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:
The number 21 fits into 80 3 times, leaving a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 9636.23809523
Subtracting 63 from 80 leaves us 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.

The final outcome is 9636.23809523, with a leftover of 1.7e-08.