We look at the division of 231331 by 65 
The aim is to understand the frequency of 65 in 231331.

Advancing to step 1:
If we divide 2 by 65, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 65

On to step 2:
The number 65 fits into 23 0 times, leaving a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 23 and we're left with 23.
Fetch the next digit (1) from the dividend, attach it to 23 and continue: 231 / 65

Going ahead to step 3:
65 goes into 231 3 times with a remainder of 36.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 195 from 231, we get 36.
Fetch the next digit (3) from the dividend, attach it to 36 and continue: 363 / 65

Going ahead to step 4:
65 goes into 363 5 times with a remainder of 38.
The next digit of our result is 5. 
Result so far: 35.0
If we take 325 away from 363, we end up with 38.
Bring next digit (3) of the dividend behind the 38 and repeat the process: 383 / 65

Moving on to step 5:
When dividing 383 by 65, we get 5 with a remainder of 58.
The next digit of our result is 5. 
Result so far: 355.0
The remainder is 58 after subtracting 325 from 383.
Bring next digit (1) of the dividend behind the 58 and repeat the process: 581 / 65

Moving on to step 6:
65 can be fit into 581 8 times, resulting in a remainder of 61.
Record the quotient 8 as the next digit in the result. 
Result so far: 3558.0
Subtracting 520 from 581 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 7:
610 divided by 65 is 9 with a remainder of 25.
Use 9 as the next digit of our solution. 
Result so far: 3558.9
Subtracting 585 from 610 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 8:
If we divide 250 by 65, we get 3 and a remainder of 55.
The next digit of our result is 3. 
Result so far: 3558.93
If we subtract 195 from 250, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 9:
When dividing 550 by 65, we get 8 with a remainder of 30.
Use 8 as the next digit of our solution. 
Result so far: 3558.938
Subtract 520 from 550 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 10:
65 goes into 300 4 times with a remainder of 40.
Use 4 as the next digit of our solution. 
Result so far: 3558.9384
If we take 260 away from 300, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 11:
65 can be fit into 400 6 times, resulting in a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 3558.93846
If we subtract 390 from 400, 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.

Let's proceed to step 12:
65 can be fit into 100 1 times, resulting in a remainder of 35.
Write down 1 as next digit of the result. 
Result so far: 3558.938461
Subtracting 65 from 100 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 13:
The number 65 fits into 350 5 times, leaving a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 3558.9384615
The remainder is 25 after subtracting 325 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 14:
250 divided by 65 is 3 with a remainder of 55.
Put 3 as the next digit of the answer. 
Result so far: 3558.93846153
If we take 195 away from 250, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

The quotient of the division is 3558.93846153, and the remainder is 5.5e-08.