487811 divided by 23 
The aim is to understand the frequency of 23 in 487811.

Going ahead to step 1:
4 divided by 23 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 23

Moving on to step 2:
23 goes into 48 2 times with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 46 away from 48, we end up with 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 23

Advancing to step 3:
27 divided by 23 is 1 with a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we take 23 away from 27, we end up with 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 23

Step 4:
48 divided by 23 is 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 212.0
Subtract 46 from 48 to get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 23

Going ahead to step 5:
21 divided by 23 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 2120.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 23

On to step 6:
23 can be fit into 211 9 times, resulting in a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 21209.0
If we take 207 away from 211, 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.

Moving on to step 7:
40 divided by 23 is 1 with a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 21209.1
Subtracting 23 from 40 leaves us 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.

Moving on to step 8:
If we divide 170 by 23, we get 7 and a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 21209.17
If we take 161 away from 170, we end up 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.

On to step 9:
The number 23 fits into 90 3 times, leaving a remainder of 21.
Put 3 as the next digit of the answer. 
Result so far: 21209.173
Deduct 69 from 90 and we're left 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.

Advancing to step 10:
If we divide 210 by 23, we get 9 and a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 21209.1739
If we subtract 207 from 210, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 11:
If we divide 30 by 23, we get 1 and a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 21209.17391
Subtracting 23 from 30 leaves us 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.

Going ahead to step 12:
70 divided by 23 is 3 with a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 21209.173913
Subtracting 69 from 70 leaves us with 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:
23 can be fit into 10 0 times, resulting in a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 21209.173913
Deduct 0 from 10 and we're left 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.

On to step 14:
23 can be fit into 100 4 times, resulting in a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 21209.17391304
If we take 92 away from 100, we end up 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.

The final result is 21209.17391304 with a remainder of 8e-09.