We divide 323189 by 21
We're looking to find how many times 21 goes into 323189.

Going ahead to step 1:
When dividing 3 by 21, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 21

On to step 2:
21 can be fit into 32 1 times, resulting in a remainder of 11.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 21 from 32 to get 11.
Include the next digit (3) from the dividend after 11, then repeat: 113 / 21

On to step 3:
The number 21 fits into 113 5 times, leaving a remainder of 8.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtracting 105 from 113 leaves us with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 21

Advancing to step 4:
If we divide 81 by 21, we get 3 and a remainder of 18.
Put 3 as the next digit of the answer. 
Result so far: 153.0
Deduct 63 from 81 and we're left with 18.
Fetch the next digit (8) from the dividend, attach it to 18 and continue: 188 / 21

Moving on to step 5:
The number 21 fits into 188 8 times, leaving a remainder of 20.
Record the quotient 8 as the next digit in the result. 
Result so far: 1538.0
If we take 168 away from 188, we end up with 20.
Include the next digit (9) from the dividend after 20, then repeat: 209 / 21

Advancing to step 6:
If we divide 209 by 21, we get 9 and a remainder of 20.
Record the quotient 9 as the next digit in the result. 
Result so far: 15389.0
If we take 189 away from 209, we end up 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 7:
When dividing 200 by 21, we get 9 with a remainder of 11.
The next digit of our result is 9. 
Result so far: 15389.9
If we subtract 189 from 200, we 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 8:
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: 15389.95
If we subtract 105 from 110, 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.

Going ahead to step 9:
21 can be fit into 50 2 times, resulting in a remainder of 8.
The next digit of our result is 2. 
Result so far: 15389.952
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.

On to step 10:
21 can be fit into 80 3 times, resulting in a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 15389.9523
The remainder is 17 after subtracting 63 from 80.
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 11:
When dividing 170 by 21, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 15389.95238
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.

Moving on to step 12:
When dividing 20 by 21, we get 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 15389.95238
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.

Moving on to step 13:
21 goes into 200 9 times with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 15389.9523809
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.

On to step 14:
If we divide 110 by 21, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 15389.95238095
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.

Our division results in 15389.95238095 with a remaining 5e-09.