123645 divided by 23 
Let's see how many times 23 fits into 123645.

Moving on to step 1:
1 divided by 23 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 23

Let's proceed to step 2:
23 goes into 12 0 times with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (3) from the dividend, add it to 12, then carry on: 123 / 23

Let's proceed to step 3:
23 can be fit into 123 5 times, resulting in a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 115 from 123 and we're left with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 23

On to step 4:
86 divided by 23 is 3 with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 53.0
The remainder is 17 after subtracting 69 from 86.
Take the next digit (4) from the dividend and append it to 17, then repeat: 174 / 23

Going ahead to step 5:
The number 23 fits into 174 7 times, leaving a remainder of 13.
The next digit of our result is 7. 
Result so far: 537.0
Subtracting 161 from 174 leaves us with 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 23

Advancing to step 6:
23 goes into 135 5 times with a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 5375.0
If we take 115 away from 135, 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.

Let's proceed to step 7:
23 goes into 200 8 times with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 5375.8
If we subtract 184 from 200, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
If we divide 160 by 23, we get 6 and a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 5375.86
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.

Let's proceed to step 9:
220 divided by 23 is 9 with a remainder of 13.
The next digit of our result is 9. 
Result so far: 5375.869
Subtract 207 from 220 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 10:
The number 23 fits into 130 5 times, leaving a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 5375.8695
Deduct 115 from 130 and we're left with 15.
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:
The number 23 fits into 150 6 times, leaving a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 5375.86956
If we subtract 138 from 150, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 12:
23 goes into 120 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 5375.869565
Subtracting 115 from 120 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 13:
If we divide 50 by 23, we get 2 and a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 5375.8695652
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.

Advancing to step 14:
23 can be fit into 40 1 times, resulting in a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 5375.86956521
Deduct 23 from 40 and we're left 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.

Our division results in 5375.86956521 with a remaining 1.7e-08.