Let's divide 322881 by 21
We want to divide 322881 by 21.

On to step 1:
If we divide 3 by 21, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 21

Advancing to step 2:
21 can be fit into 32 1 times, resulting in a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 21 from 32, we get 11.
Bring next digit (2) of the dividend behind the 11 and repeat the process: 112 / 21

Moving on to step 3:
21 can be fit into 112 5 times, resulting in a remainder of 7.
The next digit of our result is 5. 
Result so far: 15.0
If we subtract 105 from 112, we get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 21

Moving on to step 4:
If we divide 78 by 21, we get 3 and a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 153.0
If we subtract 63 from 78, we get 15.
Bring next digit (8) of the dividend behind the 15 and repeat the process: 158 / 21

Moving on to step 5:
If we divide 158 by 21, we get 7 and a remainder of 11.
The next digit of our result is 7. 
Result so far: 1537.0
Deduct 147 from 158 and we're left with 11.
Append the next digit (1) from the dividend to 11 and continue with: 111 / 21

Advancing to step 6:
111 divided by 21 is 5 with a remainder of 6.
Put 5 as the next digit of the answer. 
Result so far: 15375.0
The remainder is 6 after subtracting 105 from 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
If we divide 60 by 21, we get 2 and a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 15375.2
If we subtract 42 from 60, we 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.

Going ahead to step 8:
The number 21 fits into 180 8 times, leaving a remainder of 12.
The next digit of our result is 8. 
Result so far: 15375.28
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 9:
21 can be fit into 120 5 times, resulting in a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 15375.285
If we take 105 away from 120, we end up 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.

Let's proceed to step 10:
150 divided by 21 is 7 with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 15375.2857
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.

Going ahead to step 11:
The number 21 fits into 30 1 times, leaving a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 15375.28571
Deduct 21 from 30 and we're left 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.

On to step 12:
If we divide 90 by 21, we get 4 and a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 15375.285714
Subtract 84 from 90 to 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.

On to step 13:
21 goes into 60 2 times with a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 15375.2857142
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.

Going ahead to step 14:
180 divided by 21 is 8 with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 15375.28571428
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.

The quotient of the division is 15375.28571428, and the remainder is 1.2e-08.