We look at the division of 823977 by 68 
The aim is to understand the frequency of 68 in 823977.

Advancing to step 1:
68 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 68

Step 2:
The number 68 fits into 82 1 times, leaving a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 68 from 82 leaves us with 14.
Take the next digit (3) from the dividend and append it to 14, then repeat: 143 / 68

On to step 3:
If we divide 143 by 68, we get 2 and a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 12.0
The remainder is 7 after subtracting 136 from 143.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 68

Going ahead to step 4:
When dividing 79 by 68, we get 1 with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 121.0
If we subtract 68 from 79, we get 11.
Take the next digit (7) from the dividend and append it to 11, then repeat: 117 / 68

Moving on to step 5:
When dividing 117 by 68, we get 1 with a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 1211.0
Subtract 68 from 117 to get 49.
Take the next digit (7) from the dividend and append it to 49, then repeat: 497 / 68

Moving on to step 6:
68 can be fit into 497 7 times, resulting in a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 12117.0
Subtracting 476 from 497 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 7:
68 can be fit into 210 3 times, resulting in a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 12117.3
If we subtract 204 from 210, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
When dividing 60 by 68, we get 0 with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 12117.3
The remainder is 60 after subtracting 0 from 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: 12117.308
Deduct 544 from 600 and we're left with 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: 12117.3088
Subtracting 544 from 560 leaves us 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 12117.3088 and a remainder of 0.00016.