423930 ÷ 23 
Our goal is to divide 423930 by 23.

Let's proceed to step 1:
23 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 23

Advancing to step 2:
The number 23 fits into 42 1 times, leaving a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 23 away from 42, we end up with 19.
Include the next digit (3) from the dividend after 19, then repeat: 193 / 23

Moving on to step 3:
The number 23 fits into 193 8 times, leaving a remainder of 9.
The next digit of our result is 8. 
Result so far: 18.0
Subtracting 184 from 193 leaves us with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 23

Let's proceed to step 4:
23 can be fit into 99 4 times, resulting in a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 184.0
Subtract 92 from 99 to get 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 23

Moving on to step 5:
The number 23 fits into 73 3 times, leaving a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 1843.0
Deduct 69 from 73 and we're left with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 23

Going ahead to step 6:
If we divide 40 by 23, we get 1 and a remainder of 17.
The next digit of our result is 1. 
Result so far: 18431.0
If we take 23 away from 40, we end up with 17.
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 7:
23 can be fit into 170 7 times, resulting in a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 18431.7
If we take 161 away from 170, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 8:
90 divided by 23 is 3 with a remainder of 21.
The next digit of our result is 3. 
Result so far: 18431.73
Subtracting 69 from 90 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 9:
23 can be fit into 210 9 times, resulting in a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 18431.739
Deduct 207 from 210 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 10:
23 can be fit into 30 1 times, resulting in a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 18431.7391
If we subtract 23 from 30, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 11:
70 divided by 23 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 18431.73913
Subtracting 69 from 70 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 12:
10 divided by 23 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 18431.73913
Deduct 0 from 10 and we're left 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 13:
If we divide 100 by 23, we get 4 and a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 18431.7391304
Subtract 92 from 100 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.

Advancing to step 14:
If we divide 80 by 23, we get 3 and a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 18431.73913043
The remainder is 11 after subtracting 69 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Our division results in 18431.73913043 with a remaining 1.1e-08.