We look at the division of 891634 by 65 
The aim is to understand the frequency of 65 in 891634.

Advancing to step 1:
8 divided by 65 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 65

Moving on to step 2:
65 goes into 89 1 times with a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 65 from 89 leaves us with 24.
Grab the next digit (1) from the dividend, add it to 24, then carry on: 241 / 65

Moving on to step 3:
When dividing 241 by 65, we get 3 with a remainder of 46.
The next digit of our result is 3. 
Result so far: 13.0
The remainder is 46 after subtracting 195 from 241.
Append the next digit (6) from the dividend to 46 and continue with: 466 / 65

On to step 4:
65 goes into 466 7 times with a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 137.0
Subtract 455 from 466 to get 11.
Fetch the next digit (3) from the dividend, attach it to 11 and continue: 113 / 65

Advancing to step 5:
When dividing 113 by 65, we get 1 with a remainder of 48.
The number 1 becomes the next digit in our result. 
Result so far: 1371.0
Deduct 65 from 113 and we're left with 48.
Take the next digit (4) from the dividend and append it to 48, then repeat: 484 / 65

Going ahead to step 6:
If we divide 484 by 65, we get 7 and a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 13717.0
If we subtract 455 from 484, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
65 goes into 290 4 times with a remainder of 30.
The next digit of our result is 4. 
Result so far: 13717.4
Subtract 260 from 290 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.

Let's proceed to step 8:
The number 65 fits into 300 4 times, leaving a remainder of 40.
Write down 4 as next digit of the result. 
Result so far: 13717.44
If we subtract 260 from 300, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 13717.44, with a leftover of 0.04.