Let's divide 996963 by 21
We're looking to find how many times 21 goes into 996963.

Let's proceed to step 1:
21 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 21

Advancing to step 2:
The number 21 fits into 99 4 times, leaving a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 84 from 99, we get 15.
Bring next digit (6) of the dividend behind the 15 and repeat the process: 156 / 21

Let's proceed to step 3:
When dividing 156 by 21, we get 7 with a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
The remainder is 9 after subtracting 147 from 156.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 21

Advancing to step 4:
When dividing 99 by 21, we get 4 with a remainder of 15.
Use 4 as the next digit of our solution. 
Result so far: 474.0
Subtracting 84 from 99 leaves us with 15.
Grab the next digit (6) from the dividend, add it to 15, then carry on: 156 / 21

Moving on to step 5:
21 goes into 156 7 times with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 4747.0
Subtracting 147 from 156 leaves us with 9.
Bring next digit (3) of the dividend behind the 9 and repeat the process: 93 / 21

Step 6:
When dividing 93 by 21, we get 4 with a remainder of 9.
Record the quotient 4 as the next digit in the result. 
Result so far: 47474.0
If we take 84 away from 93, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
When dividing 90 by 21, we get 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 47474.4
Subtracting 84 from 90 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
If we divide 60 by 21, we get 2 and a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 47474.42
Subtract 42 from 60 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 9:
21 can be fit into 180 8 times, resulting in a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 47474.428
Deduct 168 from 180 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
120 divided by 21 is 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 47474.4285
Deduct 105 from 120 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 11:
21 goes into 150 7 times with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 47474.42857
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 12:
When dividing 30 by 21, we get 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 47474.428571
If we take 21 away from 30, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 13:
The number 21 fits into 90 4 times, leaving a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 47474.4285714
If we subtract 84 from 90, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 14:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 47474.42857142
If we take 42 away from 60, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

After the division, we end up with 47474.42857142 and a remainder of 1.8e-08.