We look at the division of 720804 by 68 
The aim is to understand the frequency of 68 in 720804.

Advancing to step 1:
68 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 68

Let's proceed to step 2:
68 goes into 72 1 times with a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 68 away from 72, we end up with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 68

Moving on to step 3:
If we divide 40 by 68, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 40 leaves us with 40.
Fetch the next digit (8) from the dividend, attach it to 40 and continue: 408 / 68

Going ahead to step 4:
68 can be fit into 408 6 times, resulting in a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
Subtract 408 from 408 to get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 68

Moving on to step 5:
If we divide 0 by 68, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 1060.0
If we take 0 away from 0, we end up with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 68

On to step 6:
If we divide 4 by 68, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 10600.0
Subtracting 0 from 4 leaves us 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.

On to step 7:
68 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 10600.0
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
400 divided by 68 is 5 with a remainder of 60.
Record the quotient 5 as the next digit in the result. 
Result so far: 10600.05
If we take 340 away from 400, we end up with 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 9:
68 can be fit into 600 8 times, resulting in a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 10600.058
Subtract 544 from 600 to 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.

Advancing to step 10:
If we divide 560 by 68, we get 8 and a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 10600.0588
Deduct 544 from 560 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 10600.0588 and a remainder of 0.00016.