We look at the division of 456429 by 23 
We're looking to find how many times 23 goes into 456429.

Moving on to step 1:
4 divided by 23 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 23

Step 2:
23 can be fit into 45 1 times, resulting in a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 23 from 45, we get 22.
Include the next digit (6) from the dividend after 22, then repeat: 226 / 23

Step 3:
226 divided by 23 is 9 with a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Deduct 207 from 226 and we're left with 19.
Bring next digit (4) of the dividend behind the 19 and repeat the process: 194 / 23

Step 4:
When dividing 194 by 23, we get 8 with a remainder of 10.
Write down 8 as next digit of the result. 
Result so far: 198.0
The remainder is 10 after subtracting 184 from 194.
Bring next digit (2) of the dividend behind the 10 and repeat the process: 102 / 23

Advancing to step 5:
The number 23 fits into 102 4 times, leaving a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 1984.0
Deduct 92 from 102 and we're left with 10.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 23

On to step 6:
The number 23 fits into 109 4 times, leaving a remainder of 17.
Use 4 as the next digit of our solution. 
Result so far: 19844.0
Subtracting 92 from 109 leaves us 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.

Moving on to step 7:
170 divided by 23 is 7 with a remainder of 9.
The next digit of our result is 7. 
Result so far: 19844.7
Subtract 161 from 170 to 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.

On to step 8:
23 goes into 90 3 times with a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 19844.73
If we subtract 69 from 90, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 9:
If we divide 210 by 23, we get 9 and a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 19844.739
If we take 207 away from 210, we end up 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:
When dividing 30 by 23, we get 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 19844.7391
The remainder is 7 after subtracting 23 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 11:
When dividing 70 by 23, we get 3 with a remainder of 1.
The next digit of our result is 3. 
Result so far: 19844.73913
Subtract 69 from 70 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 12:
10 divided by 23 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 19844.73913
If we take 0 away from 10, 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.

Moving on to step 13:
23 can be fit into 100 4 times, resulting in a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 19844.7391304
If we subtract 92 from 100, 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.

Let's proceed 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: 19844.73913043
Subtracting 69 from 80 leaves us 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.

The final result is 19844.73913043 with a remainder of 1.1e-08.