We're dividing 80633664 by 65 
The aim is to understand the frequency of 65 in 80633664.

On to step 1:
When dividing 8 by 65, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 65

Advancing to step 2:
When dividing 80 by 65, we get 1 with a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 65 from 80, we get 15.
Append the next digit (6) from the dividend to 15 and continue with: 156 / 65

Step 3:
156 divided by 65 is 2 with a remainder of 26.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we subtract 130 from 156, we get 26.
Append the next digit (3) from the dividend to 26 and continue with: 263 / 65

Going ahead to step 4:
65 can be fit into 263 4 times, resulting in a remainder of 3.
Use 4 as the next digit of our solution. 
Result so far: 124.0
If we take 260 away from 263, we end up with 3.
Bring next digit (3) of the dividend behind the 3 and repeat the process: 33 / 65

Moving on to step 5:
65 goes into 33 0 times with a remainder of 33.
The next digit of our result is 0. 
Result so far: 1240.0
The remainder is 33 after subtracting 0 from 33.
Append the next digit (6) from the dividend to 33 and continue with: 336 / 65

Step 6:
If we divide 336 by 65, we get 5 and a remainder of 11.
Record the quotient 5 as the next digit in the result. 
Result so far: 12405.0
Subtract 325 from 336 to get 11.
Bring next digit (6) of the dividend behind the 11 and repeat the process: 116 / 65

Going ahead to step 7:
When dividing 116 by 65, we get 1 with a remainder of 51.
Record the quotient 1 as the next digit in the result. 
Result so far: 124051.0
Deduct 65 from 116 and we're left with 51.
Bring next digit (4) of the dividend behind the 51 and repeat the process: 514 / 65

Let's proceed to step 8:
65 goes into 514 7 times with a remainder of 59.
Put 7 as the next digit of the answer. 
Result so far: 1240517.0
Deduct 455 from 514 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Step 9:
If we divide 590 by 65, we get 9 and a remainder of 5.
The next digit of our result is 9. 
Result so far: 1240517.9
If we subtract 585 from 590, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 10:
The number 65 fits into 50 0 times, leaving a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 1240517.9
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 11:
If we divide 500 by 65, we get 7 and a remainder of 45.
Record the quotient 7 as the next digit in the result. 
Result so far: 1240517.907
The remainder is 45 after subtracting 455 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 12:
450 divided by 65 is 6 with a remainder of 60.
The next digit of our result is 6. 
Result so far: 1240517.9076
If we take 390 away from 450, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 13:
When dividing 600 by 65, we get 9 with a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 1240517.90769
Subtract 585 from 600 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 14:
150 divided by 65 is 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 1240517.907692
Subtracting 130 from 150 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.

Going ahead to step 15:
The number 65 fits into 200 3 times, leaving a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 1240517.9076923
If we take 195 away from 200, 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.

On to step 16:
65 goes into 50 0 times with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 1240517.9076923
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 1240517.9076923 with a remainder of 5e-08.