We look at the division of 18043637 by 65 
The aim is to understand the frequency of 65 in 18043637.

Going ahead to step 1:
65 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 65

Moving on to step 2:
If we divide 18 by 65, we get 0 and a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Bring next digit (0) of the dividend behind the 18 and repeat the process: 180 / 65

Step 3:
When dividing 180 by 65, we get 2 with a remainder of 50.
The next digit of our result is 2. 
Result so far: 2.0
If we take 130 away from 180, we end up with 50.
Fetch the next digit (4) from the dividend, attach it to 50 and continue: 504 / 65

Step 4:
When dividing 504 by 65, we get 7 with a remainder of 49.
Use 7 as the next digit of our solution. 
Result so far: 27.0
If we take 455 away from 504, we end up with 49.
Grab the next digit (3) from the dividend, add it to 49, then carry on: 493 / 65

Moving on to step 5:
When dividing 493 by 65, we get 7 with a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 277.0
The remainder is 38 after subtracting 455 from 493.
Fetch the next digit (6) from the dividend, attach it to 38 and continue: 386 / 65

Advancing to step 6:
65 goes into 386 5 times with a remainder of 61.
Put 5 as the next digit of the answer. 
Result so far: 2775.0
Subtracting 325 from 386 leaves us with 61.
Take the next digit (3) from the dividend and append it to 61, then repeat: 613 / 65

Moving on to step 7:
613 divided by 65 is 9 with a remainder of 28.
The number 9 becomes the next digit in our result. 
Result so far: 27759.0
If we subtract 585 from 613, we get 28.
Grab the next digit (7) from the dividend, add it to 28, then carry on: 287 / 65

Step 8:
65 goes into 287 4 times with a remainder of 27.
Use 4 as the next digit of our solution. 
Result so far: 277594.0
Deduct 260 from 287 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 9:
270 divided by 65 is 4 with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 277594.4
If we subtract 260 from 270, 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.

Going ahead to step 10:
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: 277594.41
If we subtract 65 from 100, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 11:
The number 65 fits into 350 5 times, leaving a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 277594.415
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 12:
65 goes into 250 3 times with a remainder of 55.
The number 3 becomes the next digit in our result. 
Result so far: 277594.4153
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.

Going ahead to step 13:
550 divided by 65 is 8 with a remainder of 30.
The next digit of our result is 8. 
Result so far: 277594.41538
Deduct 520 from 550 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 14:
When dividing 300 by 65, we get 4 with a remainder of 40.
Write down 4 as next digit of the result. 
Result so far: 277594.415384
Deduct 260 from 300 and we're left 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.

On to step 15:
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: 277594.4153846
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.

Let's proceed to step 16:
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: 277594.41538461
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.

The final outcome is 277594.41538461, with a leftover of 3.5e-08.