We divide 281636 by 21
We want to figure out the number of times 281636 can be divided by 21.

Let's proceed to step 1:
2 divided by 21 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 21

Step 2:
21 can be fit into 28 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 21 from 28, we get 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 21

Step 3:
The number 21 fits into 71 3 times, leaving a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 63 from 71 to get 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 21

Moving on to step 4:
If we divide 86 by 21, we get 4 and a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 134.0
Deduct 84 from 86 and we're left with 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 21

Let's proceed to step 5:
When dividing 23 by 21, we get 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1341.0
The remainder is 2 after subtracting 21 from 23.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 21

Let's proceed to step 6:
21 goes into 26 1 times with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 13411.0
If we subtract 21 from 26, 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 7:
When dividing 50 by 21, we get 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 13411.2
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.

Advancing to step 8:
21 goes into 80 3 times with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 13411.23
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.

Going ahead to step 9:
21 can be fit into 170 8 times, resulting in a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 13411.238
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.

On to step 10:
20 divided by 21 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 13411.238
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.

Let's proceed to step 11:
The number 21 fits into 200 9 times, leaving a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 13411.23809
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.

Step 12:
If we divide 110 by 21, we get 5 and a remainder of 5.
The next digit of our result is 5. 
Result so far: 13411.238095
The remainder is 5 after subtracting 105 from 110.
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 13:
If we divide 50 by 21, we get 2 and a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 13411.2380952
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.

Step 14:
21 can be fit into 80 3 times, resulting in a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 13411.23809523
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.

In conclusion, the division gives 13411.23809523 with a balance of 1.7e-08.