We divide 42039 by 23
We want to divide 42039 by 23.

Let's proceed to step 1:
4 divided by 23 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 23

Moving on to step 2:
42 divided by 23 is 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 23 from 42 leaves us with 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 23

Moving on to step 3:
The number 23 fits into 190 8 times, leaving a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 18.0
If we subtract 184 from 190, we get 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 23

Let's proceed to step 4:
When dividing 63 by 23, we get 2 with a remainder of 17.
Put 2 as the next digit of the answer. 
Result so far: 182.0
If we subtract 46 from 63, we get 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 23

Let's proceed to step 5:
The number 23 fits into 179 7 times, leaving a remainder of 18.
Use 7 as the next digit of our solution. 
Result so far: 1827.0
If we subtract 161 from 179, 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.

Let's proceed to step 6:
23 can be fit into 180 7 times, resulting in a remainder of 19.
The number 7 becomes the next digit in our result. 
Result so far: 1827.7
If we subtract 161 from 180, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 7:
23 can be fit into 190 8 times, resulting in a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 1827.78
Subtracting 184 from 190 leaves us 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.

Moving on to step 8:
When dividing 60 by 23, we get 2 with a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 1827.782
Subtract 46 from 60 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 9:
When dividing 140 by 23, we get 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 1827.7826
Subtract 138 from 140 to 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.

Going ahead to step 10:
23 can be fit into 20 0 times, resulting in a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 1827.7826
Subtracting 0 from 20 leaves us 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.

Moving on to step 11:
If we divide 200 by 23, we get 8 and a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 1827.782608
The remainder is 16 after subtracting 184 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 12:
23 can be fit into 160 6 times, resulting in a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 1827.7826086
Subtracting 138 from 160 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.

Let's proceed to step 13:
23 goes into 220 9 times with a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 1827.78260869
If we subtract 207 from 220, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final outcome is 1827.78260869, with a leftover of 1.3e-08.