409484 ÷ 65 
The aim is to understand the frequency of 65 in 409484.

On to step 1:
When dividing 4 by 65, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 65

Going ahead to step 2:
When dividing 40 by 65, we get 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Bring next digit (9) of the dividend behind the 40 and repeat the process: 409 / 65

Step 3:
409 divided by 65 is 6 with a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtracting 390 from 409 leaves us with 19.
Append the next digit (4) from the dividend to 19 and continue with: 194 / 65

Going ahead to step 4:
If we divide 194 by 65, we get 2 and a remainder of 64.
Write down 2 as next digit of the result. 
Result so far: 62.0
If we subtract 130 from 194, we get 64.
Append the next digit (8) from the dividend to 64 and continue with: 648 / 65

Moving on to step 5:
65 can be fit into 648 9 times, resulting in a remainder of 63.
Put 9 as the next digit of the answer. 
Result so far: 629.0
If we take 585 away from 648, we end up with 63.
Take the next digit (4) from the dividend and append it to 63, then repeat: 634 / 65

On to step 6:
When dividing 634 by 65, we get 9 with a remainder of 49.
Put 9 as the next digit of the answer. 
Result so far: 6299.0
If we take 585 away from 634, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 7:
65 goes into 490 7 times with a remainder of 35.
Use 7 as the next digit of our solution. 
Result so far: 6299.7
If we take 455 away from 490, we end up 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.

On to step 8:
If we divide 350 by 65, we get 5 and a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 6299.75
Deduct 325 from 350 and we're left 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.

Step 9:
The number 65 fits into 250 3 times, leaving a remainder of 55.
Use 3 as the next digit of our solution. 
Result so far: 6299.753
Subtracting 195 from 250 leaves us 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.

Moving on to step 10:
The number 65 fits into 550 8 times, leaving a remainder of 30.
The next digit of our result is 8. 
Result so far: 6299.7538
If we subtract 520 from 550, we 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.

Moving on to step 11:
If we divide 300 by 65, we get 4 and a remainder of 40.
Write down 4 as next digit of the result. 
Result so far: 6299.75384
Subtracting 260 from 300 leaves us 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.

Going ahead to step 12:
If we divide 400 by 65, we get 6 and a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 6299.753846
Deduct 390 from 400 and we're left 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.

Moving on to step 13:
The number 65 fits into 100 1 times, leaving a remainder of 35.
Record the quotient 1 as the next digit in the result. 
Result so far: 6299.7538461
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.

Let's proceed to step 14:
When dividing 350 by 65, we get 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 6299.75384615
If we subtract 325 from 350, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 6299.75384615, with a leftover of 2.5e-08.