We're dividing 99867730 by 23 
The aim is to understand the frequency of 23 in 99867730.

On to step 1:
23 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 23

Moving on to step 2:
The number 23 fits into 99 4 times, leaving a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 92 from 99 to get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 23

Let's proceed to step 3:
The number 23 fits into 78 3 times, leaving a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
If we take 69 away from 78, we end up with 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 23

Step 4:
The number 23 fits into 96 4 times, leaving a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 434.0
Deduct 92 from 96 and we're left with 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 23

Advancing to step 5:
If we divide 47 by 23, we get 2 and a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 4342.0
If we take 46 away from 47, we end up with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 23

On to step 6:
23 can be fit into 17 0 times, resulting in a remainder of 17.
Record the quotient 0 as the next digit in the result. 
Result so far: 43420.0
Subtracting 0 from 17 leaves us with 17.
Grab the next digit (3) from the dividend, add it to 17, then carry on: 173 / 23

Let's proceed to step 7:
The number 23 fits into 173 7 times, leaving a remainder of 12.
The next digit of our result is 7. 
Result so far: 434207.0
Deduct 161 from 173 and we're left with 12.
Bring next digit (0) of the dividend behind the 12 and repeat the process: 120 / 23

Step 8:
The number 23 fits into 120 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 4342075.0
The remainder is 5 after subtracting 115 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
The number 23 fits into 50 2 times, leaving a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 4342075.2
If we subtract 46 from 50, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
40 divided by 23 is 1 with a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 4342075.21
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.

Let's proceed to step 11:
23 can be fit into 170 7 times, resulting in a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 4342075.217
The remainder is 9 after subtracting 161 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 12:
23 can be fit into 90 3 times, resulting in a remainder of 21.
The next digit of our result is 3. 
Result so far: 4342075.2173
Subtract 69 from 90 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 13:
210 divided by 23 is 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 4342075.21739
Deduct 207 from 210 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 14:
23 can be fit into 30 1 times, resulting in a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 4342075.217391
If we take 23 away from 30, we end up 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.

Let's proceed to step 15:
The number 23 fits into 70 3 times, leaving a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 4342075.2173913
Subtract 69 from 70 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 16:
23 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 4342075.2173913
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 4342075.2173913 with a remaining 1e-08.