18503 divided by 23 
The aim is to understand the frequency of 23 in 18503.

Advancing to step 1:
23 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 23

Let's proceed to step 2:
18 divided by 23 is 0 with a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Fetch the next digit (5) from the dividend, attach it to 18 and continue: 185 / 23

Step 3:
If we divide 185 by 23, we get 8 and a remainder of 1.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 184 from 185 leaves us with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 23

Moving on to step 4:
If we divide 10 by 23, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 80.0
The remainder is 10 after subtracting 0 from 10.
Include the next digit (3) from the dividend after 10, then repeat: 103 / 23

On to step 5:
When dividing 103 by 23, we get 4 with a remainder of 11.
Use 4 as the next digit of our solution. 
Result so far: 804.0
The remainder is 11 after subtracting 92 from 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 6:
The number 23 fits into 110 4 times, leaving a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 804.4
Subtract 92 from 110 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 7:
If we divide 180 by 23, we get 7 and a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 804.47
If we take 161 away from 180, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 8:
If we divide 190 by 23, we get 8 and a remainder of 6.
The next digit of our result is 8. 
Result so far: 804.478
Subtracting 184 from 190 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 9:
23 goes into 60 2 times with a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 804.4782
Subtracting 46 from 60 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 10:
23 can be fit into 140 6 times, resulting in a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 804.47826
Subtract 138 from 140 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 11:
23 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 804.47826
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 12:
23 goes into 200 8 times with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 804.4782608
The remainder is 16 after subtracting 184 from 200.
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 13:
If we divide 160 by 23, we get 6 and a remainder of 22.
The next digit of our result is 6. 
Result so far: 804.47826086
If we subtract 138 from 160, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 804.47826086, with a leftover of 2.2e-08.