816720 divided by 68 
The aim is to understand the frequency of 68 in 816720.

Moving on to step 1:
68 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 68

On to step 2:
68 goes into 81 1 times with a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 68 from 81 leaves us with 13.
Take the next digit (6) from the dividend and append it to 13, then repeat: 136 / 68

Let's proceed to step 3:
When dividing 136 by 68, we get 2 with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 136 from 136 to get 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 68

On to step 4:
68 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 120.0
Subtract 0 from 7 to get 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 68

On to step 5:
If we divide 72 by 68, we get 1 and a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 1201.0
The remainder is 4 after subtracting 68 from 72.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 68

Moving on to step 6:
If we divide 40 by 68, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 12010.0
If we subtract 0 from 40, 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.

On to step 7:
68 can be fit into 400 5 times, resulting in a remainder of 60.
Put 5 as the next digit of the answer. 
Result so far: 12010.5
If we subtract 340 from 400, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 8:
600 divided by 68 is 8 with a remainder of 56.
Write down 8 as next digit of the result. 
Result so far: 12010.58
If we subtract 544 from 600, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 9:
68 goes into 560 8 times with a remainder of 16.
The next digit of our result is 8. 
Result so far: 12010.588
The remainder is 16 after subtracting 544 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 12010.588, with a leftover of 0.0016.