We look at the division of 451543 by 23 
The aim is to understand the frequency of 23 in 451543.

Moving on to step 1:
When dividing 4 by 23, we get 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.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 23

Let's proceed to step 2:
If we divide 45 by 23, we get 1 and a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 23 away from 45, we end up with 22.
Bring next digit (1) of the dividend behind the 22 and repeat the process: 221 / 23

Moving on to step 3:
23 can be fit into 221 9 times, resulting in a remainder of 14.
The next digit of our result is 9. 
Result so far: 19.0
Deduct 207 from 221 and we're left with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 23

Let's proceed to step 4:
When dividing 145 by 23, we get 6 with a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 196.0
Subtract 138 from 145 to get 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 23

Let's proceed to step 5:
The number 23 fits into 74 3 times, leaving a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 1963.0
The remainder is 5 after subtracting 69 from 74.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 23

Let's proceed to step 6:
The number 23 fits into 53 2 times, leaving a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 19632.0
Deduct 46 from 53 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 7:
If we divide 70 by 23, we get 3 and a remainder of 1.
The next digit of our result is 3. 
Result so far: 19632.3
Deduct 69 from 70 and we're left 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.

Let's proceed to step 8:
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: 19632.3
If we subtract 0 from 10, we get 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 9:
100 divided by 23 is 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 19632.304
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.

Let's proceed to step 10:
23 goes into 80 3 times with a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 19632.3043
If we take 69 away from 80, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 11:
When dividing 110 by 23, we get 4 with a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 19632.30434
Deduct 92 from 110 and we're left 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.

Going ahead to step 12:
If we divide 180 by 23, we get 7 and a remainder of 19.
The number 7 becomes the next digit in our result. 
Result so far: 19632.304347
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.

Moving on to step 13:
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: 19632.3043478
If we take 184 away from 190, we end up 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 14:
When dividing 60 by 23, we get 2 with a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 19632.30434782
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.

The quotient of the division is 19632.30434782, and the remainder is 1.4e-08.