We're dividing 405080 by 23 
Let's see how many times 23 fits into 405080.

Moving on to step 1:
If we divide 4 by 23, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 23

Advancing to step 2:
40 divided by 23 is 1 with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 23 from 40 leaves us with 17.
Include the next digit (5) from the dividend after 17, then repeat: 175 / 23

Let's proceed to step 3:
175 divided by 23 is 7 with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we take 161 away from 175, we end up with 14.
Append the next digit (0) from the dividend to 14 and continue with: 140 / 23

On to step 4:
The number 23 fits into 140 6 times, leaving a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 176.0
Deduct 138 from 140 and we're left with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 23

Going ahead to step 5:
The number 23 fits into 28 1 times, leaving a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 1761.0
Subtracting 23 from 28 leaves us with 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 23

Step 6:
When dividing 50 by 23, we get 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 17612.0
If we take 46 away from 50, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 7:
23 goes into 40 1 times with a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 17612.1
The remainder is 17 after subtracting 23 from 40.
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 8:
When dividing 170 by 23, we get 7 with a remainder of 9.
The next digit of our result is 7. 
Result so far: 17612.17
Subtracting 161 from 170 leaves us 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.

Advancing to step 9:
23 can be fit into 90 3 times, resulting in a remainder of 21.
The next digit of our result is 3. 
Result so far: 17612.173
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 10:
210 divided by 23 is 9 with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 17612.1739
The remainder is 3 after subtracting 207 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 11:
23 can be fit into 30 1 times, resulting in a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 17612.17391
Deduct 23 from 30 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 12:
23 goes into 70 3 times with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 17612.173913
The remainder is 1 after subtracting 69 from 70.
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 13:
23 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 17612.173913
Subtracting 0 from 10 leaves us 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.

Let's proceed to step 14:
23 goes into 100 4 times with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 17612.17391304
Deduct 92 from 100 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 17612.17391304 with a remaining 8e-09.