We look at the division of 425920 by 23 
The aim is to understand the frequency of 23 in 425920.

Going ahead to step 1:
If we divide 4 by 23, we get 0 and 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.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 23

Moving on to step 2:
23 goes into 42 1 times with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 23 from 42 leaves us with 19.
Bring next digit (5) of the dividend behind the 19 and repeat the process: 195 / 23

Moving on to step 3:
If we divide 195 by 23, we get 8 and a remainder of 11.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we subtract 184 from 195, we get 11.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 23

Let's proceed to step 4:
If we divide 119 by 23, we get 5 and a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 185.0
Subtracting 115 from 119 leaves us with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 23

On to step 5:
23 can be fit into 42 1 times, resulting in a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 1851.0
If we subtract 23 from 42, we get 19.
Bring next digit (0) of the dividend behind the 19 and repeat the process: 190 / 23

On to step 6:
If we divide 190 by 23, we get 8 and a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 18518.0
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.

Moving on to step 7:
23 goes into 60 2 times with a remainder of 14.
The next digit of our result is 2. 
Result so far: 18518.2
Subtract 46 from 60 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
140 divided by 23 is 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 18518.26
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.

Step 9:
When dividing 20 by 23, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 18518.26
Subtracting 0 from 20 leaves us 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.

Moving on to step 10:
200 divided by 23 is 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 18518.2608
Subtracting 184 from 200 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 11:
When dividing 160 by 23, we get 6 with a remainder of 22.
The number 6 becomes the next digit in our result. 
Result so far: 18518.26086
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.

Advancing to step 12:
The number 23 fits into 220 9 times, leaving a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 18518.260869
The remainder is 13 after subtracting 207 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 13:
If we divide 130 by 23, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 18518.2608695
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.

Let's proceed to step 14:
150 divided by 23 is 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 18518.26086956
Subtracting 138 from 150 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 18518.26086956 and a remainder of 1.2e-08.