Let's divide 165604 by 23
We want to figure out the number of times 165604 can be divided by 23.

On to step 1:
23 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 23

Let's proceed to step 2:
16 divided by 23 is 0 with a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Append the next digit (5) from the dividend to 16 and continue with: 165 / 23

On to step 3:
23 goes into 165 7 times with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 4 after subtracting 161 from 165.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 23

Step 4:
When dividing 46 by 23, we get 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 72.0
The remainder is 0 after subtracting 46 from 46.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 23

Going ahead to step 5:
If we divide 0 by 23, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 720.0
Subtract 0 from 0 to get 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 23

Step 6:
The number 23 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 7200.0
If we subtract 0 from 4, we 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.

Going ahead to step 7:
40 divided by 23 is 1 with a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 7200.1
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:
The number 23 fits into 170 7 times, leaving a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 7200.17
The remainder is 9 after subtracting 161 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 9:
23 can be fit into 90 3 times, resulting in a remainder of 21.
Use 3 as the next digit of our solution. 
Result so far: 7200.173
If we take 69 away from 90, we end up 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:
23 can be fit into 210 9 times, resulting in a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 7200.1739
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.

Going ahead to step 11:
The number 23 fits into 30 1 times, leaving a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 7200.17391
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.

On to step 12:
The number 23 fits into 70 3 times, leaving a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 7200.173913
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.

On to step 13:
When dividing 10 by 23, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 7200.173913
The remainder is 10 after subtracting 0 from 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 14:
The number 23 fits into 100 4 times, leaving a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 7200.17391304
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.

The final outcome is 7200.17391304, with a leftover of 8e-09.