Let's divide 990299 by 21
We want to divide 990299 by 21.

On to step 1:
21 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our 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

Let's proceed to step 2:
21 can be fit into 99 4 times, resulting in a remainder of 15.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 84 from 99 and we're left with 15.
Append the next digit (0) from the dividend to 15 and continue with: 150 / 21

Going ahead to step 3:
21 can be fit into 150 7 times, resulting in a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 47.0
Subtract 147 from 150 to get 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 21

Step 4:
When dividing 32 by 21, we get 1 with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 471.0
Deduct 21 from 32 and we're left with 11.
Fetch the next digit (9) from the dividend, attach it to 11 and continue: 119 / 21

On to step 5:
21 goes into 119 5 times with a remainder of 14.
Put 5 as the next digit of the answer. 
Result so far: 4715.0
If we take 105 away from 119, we end up with 14.
Include the next digit (9) from the dividend after 14, then repeat: 149 / 21

Step 6:
21 can be fit into 149 7 times, resulting in a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 47157.0
If we take 147 away from 149, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
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: 47157.0
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.

Advancing to step 8:
21 can be fit into 200 9 times, resulting in a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 47157.09
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.

Moving on to step 9:
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: 47157.095
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.

On to step 10:
The number 21 fits into 50 2 times, leaving a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 47157.0952
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 11:
80 divided by 21 is 3 with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 47157.09523
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 12:
21 can be fit into 170 8 times, resulting in a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 47157.095238
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.

Going ahead to step 13:
When dividing 20 by 21, we get 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 47157.095238
If we subtract 0 from 20, we get 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 14:
The number 21 fits into 200 9 times, leaving a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 47157.09523809
Deduct 189 from 200 and we're left 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.

Our division results in 47157.09523809 with a remaining 1.1e-08.