We look at the division of 554173 by 23 
The aim is to understand the frequency of 23 in 554173.

Advancing to step 1:
5 divided by 23 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 23

Step 2:
When dividing 55 by 23, we get 2 with a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 46 from 55, we get 9.
Bring next digit (4) of the dividend behind the 9 and repeat the process: 94 / 23

On to step 3:
If we divide 94 by 23, we get 4 and a remainder of 2.
The next digit of our result is 4. 
Result so far: 24.0
Subtract 92 from 94 to get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 23

Going ahead to step 4:
If we divide 21 by 23, we get 0 and a remainder of 21.
The next digit of our result is 0. 
Result so far: 240.0
Deduct 0 from 21 and we're left with 21.
Bring next digit (7) of the dividend behind the 21 and repeat the process: 217 / 23

Advancing to step 5:
23 can be fit into 217 9 times, resulting in a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 2409.0
The remainder is 10 after subtracting 207 from 217.
Bring next digit (3) of the dividend behind the 10 and repeat the process: 103 / 23

Step 6:
If we divide 103 by 23, we get 4 and a remainder of 11.
The next digit of our result is 4. 
Result so far: 24094.0
If we subtract 92 from 103, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
23 can be fit into 110 4 times, resulting in a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 24094.4
If we take 92 away from 110, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 8:
180 divided by 23 is 7 with a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 24094.47
Subtract 161 from 180 to get 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 9:
When dividing 190 by 23, we get 8 with a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 24094.478
The remainder is 6 after subtracting 184 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
When dividing 60 by 23, we get 2 with a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 24094.4782
If we take 46 away from 60, we end up 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.

Step 11:
The number 23 fits into 140 6 times, leaving a remainder of 2.
The next digit of our result is 6. 
Result so far: 24094.47826
Deduct 138 from 140 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 12:
20 divided by 23 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 24094.47826
If we subtract 0 from 20, we get 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 13:
If we divide 200 by 23, we get 8 and a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 24094.4782608
Subtract 184 from 200 to 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.

On to step 14:
The number 23 fits into 160 6 times, leaving a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 24094.47826086
The remainder is 22 after subtracting 138 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

After the division, we end up with 24094.47826086 and a remainder of 2.2e-08.