We look at the division of 404360 by 23 
We're looking to find how many times 23 goes into 404360.

Step 1:
The number 23 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 23

Moving on to step 2:
23 goes into 40 1 times with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 23 from 40 and we're left with 17.
Include the next digit (4) from the dividend after 17, then repeat: 174 / 23

Going ahead to step 3:
174 divided by 23 is 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
The remainder is 13 after subtracting 161 from 174.
Bring next digit (3) of the dividend behind the 13 and repeat the process: 133 / 23

Step 4:
23 goes into 133 5 times with a remainder of 18.
Write down 5 as next digit of the result. 
Result so far: 175.0
If we subtract 115 from 133, we get 18.
Include the next digit (6) from the dividend after 18, then repeat: 186 / 23

Advancing to step 5:
If we divide 186 by 23, we get 8 and a remainder of 2.
The next digit of our result is 8. 
Result so far: 1758.0
The remainder is 2 after subtracting 184 from 186.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 23

On to step 6:
The number 23 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 17580.0
If we take 0 away from 20, we end up 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.

Step 7:
The number 23 fits into 200 8 times, leaving a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 17580.8
If we take 184 away from 200, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 8:
The number 23 fits into 160 6 times, leaving a remainder of 22.
Write down 6 as next digit of the result. 
Result so far: 17580.86
Deduct 138 from 160 and we're left 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.

Step 9:
23 goes into 220 9 times with a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 17580.869
The remainder is 13 after subtracting 207 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 10:
The number 23 fits into 130 5 times, leaving a remainder of 15.
The next digit of our result is 5. 
Result so far: 17580.8695
The remainder is 15 after subtracting 115 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 11:
150 divided by 23 is 6 with a remainder of 12.
The next digit of our result is 6. 
Result so far: 17580.86956
If we take 138 away from 150, we end up 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:
When dividing 120 by 23, we get 5 with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 17580.869565
The remainder is 5 after subtracting 115 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 13:
50 divided by 23 is 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 17580.8695652
Subtract 46 from 50 to 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.

On to step 14:
When dividing 40 by 23, we get 1 with a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 17580.86956521
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.

The final outcome is 17580.86956521, with a leftover of 1.7e-08.