We're dividing 99592 by 21 
We're looking to find how many times 21 goes into 99592.

Going ahead to step 1:
21 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 21

Moving on to step 2:
21 goes into 99 4 times with a remainder of 15.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 84 from 99 leaves us with 15.
Take the next digit (5) from the dividend and append it to 15, then repeat: 155 / 21

Let's proceed to step 3:
If we divide 155 by 21, we get 7 and a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
Subtract 147 from 155 to get 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 21

Going ahead to step 4:
If we divide 89 by 21, we get 4 and a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 474.0
Subtract 84 from 89 to get 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 21

On to step 5:
52 divided by 21 is 2 with a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 4742.0
If we subtract 42 from 52, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 6:
21 goes into 100 4 times with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 4742.4
Subtract 84 from 100 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 7:
If we divide 160 by 21, we get 7 and a remainder of 13.
The next digit of our result is 7. 
Result so far: 4742.47
If we take 147 away from 160, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 8:
21 goes into 130 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 4742.476
The remainder is 4 after subtracting 126 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
40 divided by 21 is 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 4742.4761
Deduct 21 from 40 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 10:
21 can be fit into 190 9 times, resulting in a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 4742.47619
If we subtract 189 from 190, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 11:
21 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 4742.47619
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 12:
100 divided by 21 is 4 with a remainder of 16.
The next digit of our result is 4. 
Result so far: 4742.4761904
If we take 84 away from 100, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 13:
21 can be fit into 160 7 times, resulting in a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 4742.47619047
Deduct 147 from 160 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

In conclusion, the division gives 4742.47619047 with a balance of 1.3e-08.