We look at the division of 223123 by 42 
We're looking to find how many times 42 goes into 223123.

Going ahead to step 1:
42 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (2) from the dividend, add it to 2, then carry on: 22 / 42

Going ahead to step 2:
If we divide 22 by 42, we get 0 and a remainder of 22.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 22 to get 22.
Append the next digit (3) from the dividend to 22 and continue with: 223 / 42

On to step 3:
When dividing 223 by 42, we get 5 with a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 210 from 223 to get 13.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 42

Moving on to step 4:
When dividing 131 by 42, we get 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 53.0
Subtract 126 from 131 to get 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 42

Let's proceed to step 5:
The number 42 fits into 52 1 times, leaving a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 531.0
If we subtract 42 from 52, we get 10.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 42

Going ahead to step 6:
If we divide 103 by 42, we get 2 and a remainder of 19.
Use 2 as the next digit of our solution. 
Result so far: 5312.0
If we take 84 away from 103, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 7:
The number 42 fits into 190 4 times, leaving a remainder of 22.
Record the quotient 4 as the next digit in the result. 
Result so far: 5312.4
Subtract 168 from 190 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 8:
220 divided by 42 is 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 5312.45
If we take 210 away from 220, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
When dividing 100 by 42, we get 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 5312.452
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 10:
42 goes into 160 3 times with a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 5312.4523
Subtract 126 from 160 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 11:
When dividing 340 by 42, we get 8 with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 5312.45238
If we subtract 336 from 340, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 12:
When dividing 40 by 42, we get 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 5312.45238
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 13:
42 can be fit into 400 9 times, resulting in a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 5312.4523809
Subtracting 378 from 400 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 14:
42 goes into 220 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 5312.45238095
Subtract 210 from 220 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 5312.45238095, with a leftover of 1e-08.