We're dividing 268322 by 21 
Let's see how many times 21 fits into 268322.

Step 1:
If we divide 2 by 21, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 21

Advancing to step 2:
21 goes into 26 1 times with a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 21 from 26 leaves us with 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 21

Step 3:
The number 21 fits into 58 2 times, leaving a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Deduct 42 from 58 and we're left with 16.
Bring next digit (3) of the dividend behind the 16 and repeat the process: 163 / 21

Going ahead to step 4:
163 divided by 21 is 7 with a remainder of 16.
Put 7 as the next digit of the answer. 
Result so far: 127.0
If we take 147 away from 163, we end up with 16.
Grab the next digit (2) from the dividend, add it to 16, then carry on: 162 / 21

Going ahead to step 5:
When dividing 162 by 21, we get 7 with a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 1277.0
The remainder is 15 after subtracting 147 from 162.
Append the next digit (2) from the dividend to 15 and continue with: 152 / 21

Let's proceed to step 6:
When dividing 152 by 21, we get 7 with a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 12777.0
If we subtract 147 from 152, 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.

Let's proceed to step 7:
50 divided by 21 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 12777.2
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 8:
21 goes into 80 3 times with a remainder of 17.
The next digit of our result is 3. 
Result so far: 12777.23
Subtract 63 from 80 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 9:
If we divide 170 by 21, we get 8 and a remainder of 2.
The next digit of our result is 8. 
Result so far: 12777.238
If we take 168 away from 170, 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.

On to step 10:
21 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 12777.238
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 11:
21 goes into 200 9 times with a remainder of 11.
The next digit of our result is 9. 
Result so far: 12777.23809
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.

Step 12:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 12777.238095
If we take 105 away from 110, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 13:
If we divide 50 by 21, we get 2 and a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 12777.2380952
If we subtract 42 from 50, we 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.

Advancing to step 14:
21 goes into 80 3 times with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 12777.23809523
If we subtract 63 from 80, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The final outcome is 12777.23809523, with a leftover of 1.7e-08.