We look at the division of 781550 by 23 
The aim is to understand the frequency of 23 in 781550.

Step 1:
7 divided by 23 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 23

Step 2:
78 divided by 23 is 3 with a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 69 from 78 and we're left with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 23

On to step 3:
When dividing 91 by 23, we get 3 with a remainder of 22.
The next digit of our result is 3. 
Result so far: 33.0
The remainder is 22 after subtracting 69 from 91.
Include the next digit (5) from the dividend after 22, then repeat: 225 / 23

Moving on to step 4:
225 divided by 23 is 9 with a remainder of 18.
Write down 9 as next digit of the result. 
Result so far: 339.0
Deduct 207 from 225 and we're left with 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 23

Moving on to step 5:
23 goes into 185 8 times with a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 3398.0
The remainder is 1 after subtracting 184 from 185.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 23

Going ahead to step 6:
The number 23 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 33980.0
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.

On to step 7:
The number 23 fits into 100 4 times, leaving a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 33980.4
Subtracting 92 from 100 leaves us 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.

Advancing to step 8:
23 goes into 80 3 times with a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 33980.43
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.

Let's proceed to step 9:
If we divide 110 by 23, we get 4 and a remainder of 18.
Put 4 as the next digit of the answer. 
Result so far: 33980.434
If we subtract 92 from 110, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 10:
23 can be fit into 180 7 times, resulting in a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 33980.4347
If we take 161 away from 180, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 11:
When dividing 190 by 23, we get 8 with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 33980.43478
Subtract 184 from 190 to get 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 12:
23 goes into 60 2 times with a remainder of 14.
The next digit of our result is 2. 
Result so far: 33980.434782
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.

Advancing to step 13:
If we divide 140 by 23, we get 6 and a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 33980.4347826
Subtracting 138 from 140 leaves us 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.

On to step 14:
If we divide 20 by 23, we get 0 and a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 33980.4347826
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.

The quotient of the division is 33980.4347826, and the remainder is 2e-08.