We look at the division of 161459 by 23 
The aim is to understand the frequency of 23 in 161459.

Step 1:
When dividing 1 by 23, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 23

Step 2:
When dividing 16 by 23, we get 0 with a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Include the next digit (1) from the dividend after 16, then repeat: 161 / 23

Let's proceed to step 3:
161 divided by 23 is 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 161 from 161 to get 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 23

Moving on to step 4:
23 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 70.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 23

Advancing to step 5:
If we divide 45 by 23, we get 1 and a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 701.0
Subtracting 23 from 45 leaves us with 22.
Fetch the next digit (9) from the dividend, attach it to 22 and continue: 229 / 23

Step 6:
If we divide 229 by 23, we get 9 and a remainder of 22.
The next digit of our result is 9. 
Result so far: 7019.0
Deduct 207 from 229 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.

Moving on to step 7:
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: 7019.9
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.

Let's proceed to step 8:
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: 7019.95
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.

Advancing to step 9:
150 divided by 23 is 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 7019.956
If we subtract 138 from 150, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 10:
If we divide 120 by 23, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 7019.9565
If we take 115 away from 120, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 11:
The number 23 fits into 50 2 times, leaving a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 7019.95652
Subtracting 46 from 50 leaves us 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.

On to step 12:
If we divide 40 by 23, we get 1 and a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 7019.956521
Subtract 23 from 40 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 13:
The number 23 fits into 170 7 times, leaving a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 7019.9565217
Deduct 161 from 170 and we're left 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.

Going ahead to step 14:
23 goes into 90 3 times with a remainder of 21.
Put 3 as the next digit of the answer. 
Result so far: 7019.95652173
Subtracting 69 from 90 leaves us 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.

The final result is 7019.95652173 with a remainder of 2.1e-08.