We look at the division of 596511 by 68 
The aim is to understand the frequency of 68 in 596511.

Step 1:
If we divide 5 by 68, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 68

Step 2:
When dividing 59 by 68, we get 0 with a remainder of 59.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 59, we get 59.
Fetch the next digit (6) from the dividend, attach it to 59 and continue: 596 / 68

Going ahead to step 3:
68 goes into 596 8 times with a remainder of 52.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 544 from 596 leaves us with 52.
Take the next digit (5) from the dividend and append it to 52, then repeat: 525 / 68

Going ahead to step 4:
If we divide 525 by 68, we get 7 and a remainder of 49.
Write down 7 as next digit of the result. 
Result so far: 87.0
Subtracting 476 from 525 leaves us with 49.
Take the next digit (1) from the dividend and append it to 49, then repeat: 491 / 68

Advancing to step 5:
The number 68 fits into 491 7 times, leaving a remainder of 15.
The number 7 becomes the next digit in our result. 
Result so far: 877.0
If we subtract 476 from 491, we get 15.
Grab the next digit (1) from the dividend, add it to 15, then carry on: 151 / 68

Advancing to step 6:
The number 68 fits into 151 2 times, leaving a remainder of 15.
Record the quotient 2 as the next digit in the result. 
Result so far: 8772.0
If we subtract 136 from 151, we 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.

Going ahead to step 7:
When dividing 150 by 68, we get 2 with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 8772.2
The remainder is 14 after subtracting 136 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
68 goes into 140 2 times with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 8772.22
Deduct 136 from 140 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 8772.22, with a leftover of 0.004.