390393 divided by 65 
The aim is to understand the frequency of 65 in 390393.

On to step 1:
3 divided by 65 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 65

Step 2:
When dividing 39 by 65, we get 0 with a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Append the next digit (0) from the dividend to 39 and continue with: 390 / 65

Going ahead to step 3:
When dividing 390 by 65, we get 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 0 after subtracting 390 from 390.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 65

Going ahead to step 4:
The number 65 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 60.0
If we subtract 0 from 3, we get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 65

On to step 5:
If we divide 39 by 65, we get 0 and a remainder of 39.
The next digit of our result is 0. 
Result so far: 600.0
If we subtract 0 from 39, we get 39.
Fetch the next digit (3) from the dividend, attach it to 39 and continue: 393 / 65

Let's proceed to step 6:
When dividing 393 by 65, we get 6 with a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 6006.0
Subtract 390 from 393 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
If we divide 30 by 65, we get 0 and a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 6006.0
If we take 0 away from 30, we end up 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.

Going ahead to step 8:
When dividing 300 by 65, we get 4 with a remainder of 40.
The number 4 becomes the next digit in our result. 
Result so far: 6006.04
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.

Let's proceed to step 9:
400 divided by 65 is 6 with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 6006.046
Subtract 390 from 400 to 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.

Moving on to step 10:
If we divide 100 by 65, we get 1 and a remainder of 35.
Write down 1 as next digit of the result. 
Result so far: 6006.0461
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.

On to step 11:
65 can be fit into 350 5 times, resulting in a remainder of 25.
The next digit of our result is 5. 
Result so far: 6006.04615
Subtract 325 from 350 to 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.

Step 12:
65 can be fit into 250 3 times, resulting in a remainder of 55.
The number 3 becomes the next digit in our result. 
Result so far: 6006.046153
The remainder is 55 after subtracting 195 from 250.
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:
If we divide 550 by 65, we get 8 and a remainder of 30.
The number 8 becomes the next digit in our result. 
Result so far: 6006.0461538
Subtracting 520 from 550 leaves us 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.

Going ahead to step 14:
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: 6006.04615384
The remainder is 40 after subtracting 260 from 300.
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 6006.04615384, with a leftover of 4e-08.