We look at the division of 222342 by 21 
We want to figure out the number of times 222342 can be divided by 21.

Going ahead to step 1:
21 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 21

Let's proceed to step 2:
21 goes into 22 1 times with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 21 from 22 to get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 21

Step 3:
21 goes into 12 0 times with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtract 0 from 12 to get 12.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 21

Advancing to step 4:
123 divided by 21 is 5 with a remainder of 18.
Record the quotient 5 as the next digit in the result. 
Result so far: 105.0
If we take 105 away from 123, we end up with 18.
Bring next digit (4) of the dividend behind the 18 and repeat the process: 184 / 21

On to step 5:
21 can be fit into 184 8 times, resulting in a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 1058.0
Subtracting 168 from 184 leaves us with 16.
Append the next digit (2) from the dividend to 16 and continue with: 162 / 21

Advancing to step 6:
The number 21 fits into 162 7 times, leaving a remainder of 15.
The number 7 becomes the next digit in our result. 
Result so far: 10587.0
Subtract 147 from 162 to get 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 7:
If we divide 150 by 21, we get 7 and a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 10587.7
The remainder is 3 after subtracting 147 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 8:
The number 21 fits into 30 1 times, leaving a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 10587.71
If we subtract 21 from 30, we get 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 9:
21 goes into 90 4 times with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 10587.714
Deduct 84 from 90 and we're left 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.

Advancing to step 10:
21 can be fit into 60 2 times, resulting in a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 10587.7142
Subtracting 42 from 60 leaves us 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.

Going ahead to step 11:
When dividing 180 by 21, we get 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 10587.71428
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 12:
120 divided by 21 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 10587.714285
Subtract 105 from 120 to get 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 13:
21 goes into 150 7 times with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 10587.7142857
The remainder is 3 after subtracting 147 from 150.
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 14:
30 divided by 21 is 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 10587.71428571
If we subtract 21 from 30, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Our division results in 10587.71428571 with a remaining 9e-09.