23506687 ÷ 138 
The aim is to understand the frequency of 138 in 23506687.

Moving on to step 1:
The number 138 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 138

Let's proceed to step 2:
The number 138 fits into 23 0 times, leaving a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 23 after subtracting 0 from 23.
Grab the next digit (5) from the dividend, add it to 23, then carry on: 235 / 138

Step 3:
235 divided by 138 is 1 with a remainder of 97.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 138 from 235, we get 97.
Grab the next digit (0) from the dividend, add it to 97, then carry on: 970 / 138

Advancing to step 4:
If we divide 970 by 138, we get 7 and a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtract 966 from 970 to get 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 138

Let's proceed to step 5:
46 divided by 138 is 0 with a remainder of 46.
Write down 0 as next digit of the result. 
Result so far: 170.0
If we subtract 0 from 46, we get 46.
Bring next digit (6) of the dividend behind the 46 and repeat the process: 466 / 138

Going ahead to step 6:
The number 138 fits into 466 3 times, leaving a remainder of 52.
Put 3 as the next digit of the answer. 
Result so far: 1703.0
If we subtract 414 from 466, we get 52.
Bring next digit (8) of the dividend behind the 52 and repeat the process: 528 / 138

Moving on to step 7:
The number 138 fits into 528 3 times, leaving a remainder of 114.
The next digit of our result is 3. 
Result so far: 17033.0
If we subtract 414 from 528, we get 114.
Take the next digit (7) from the dividend and append it to 114, then repeat: 1147 / 138

Step 8:
138 goes into 1147 8 times with a remainder of 43.
Put 8 as the next digit of the answer. 
Result so far: 170338.0
Subtracting 1104 from 1147 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 9:
430 divided by 138 is 3 with a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 170338.3
If we subtract 414 from 430, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
138 goes into 160 1 times with a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 170338.31
If we take 138 away from 160, we end up 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.

On to step 11:
138 can be fit into 220 1 times, resulting in a remainder of 82.
Write down 1 as next digit of the result. 
Result so far: 170338.311
If we take 138 away from 220, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

After the division, we end up with 170338.311 and a remainder of 0.0082.