We look at the division of 616720 by 68 
The aim is to understand the frequency of 68 in 616720.

Step 1:
The number 68 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 68

Step 2:
61 divided by 68 is 0 with a remainder of 61.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 61 and we're left with 61.
Bring next digit (6) of the dividend behind the 61 and repeat the process: 616 / 68

On to step 3:
The number 68 fits into 616 9 times, leaving a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 612 from 616 leaves us with 4.
Include the next digit (7) from the dividend after 4, then repeat: 47 / 68

Going ahead to step 4:
The number 68 fits into 47 0 times, leaving a remainder of 47.
Use 0 as the next digit of our solution. 
Result so far: 90.0
The remainder is 47 after subtracting 0 from 47.
Grab the next digit (2) from the dividend, add it to 47, then carry on: 472 / 68

Moving on to step 5:
68 can be fit into 472 6 times, resulting in a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 906.0
The remainder is 64 after subtracting 408 from 472.
Grab the next digit (0) from the dividend, add it to 64, then carry on: 640 / 68

Moving on to step 6:
When dividing 640 by 68, we get 9 with a remainder of 28.
The number 9 becomes the next digit in our result. 
Result so far: 9069.0
Deduct 612 from 640 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 7:
The number 68 fits into 280 4 times, leaving a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 9069.4
The remainder is 8 after subtracting 272 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 8:
When dividing 80 by 68, we get 1 with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 9069.41
Subtracting 68 from 80 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 9:
68 can be fit into 120 1 times, resulting in a remainder of 52.
The number 1 becomes the next digit in our result. 
Result so far: 9069.411
Subtracting 68 from 120 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The quotient of the division is 9069.411, and the remainder is 0.0052.