We look at the division of 554938 by 68 
The aim is to understand the frequency of 68 in 554938.

On to step 1:
5 divided by 68 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 68

Moving on to step 2:
68 goes into 55 0 times with a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 55, we get 55.
Append the next digit (4) from the dividend to 55 and continue with: 554 / 68

Advancing to step 3:
When dividing 554 by 68, we get 8 with a remainder of 10.
The next digit of our result is 8. 
Result so far: 8.0
The remainder is 10 after subtracting 544 from 554.
Bring next digit (9) of the dividend behind the 10 and repeat the process: 109 / 68

Advancing to step 4:
If we divide 109 by 68, we get 1 and a remainder of 41.
Record the quotient 1 as the next digit in the result. 
Result so far: 81.0
The remainder is 41 after subtracting 68 from 109.
Fetch the next digit (3) from the dividend, attach it to 41 and continue: 413 / 68

On to step 5:
68 goes into 413 6 times with a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 816.0
If we take 408 away from 413, we end up with 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 68

Let's proceed to step 6:
68 can be fit into 58 0 times, resulting in a remainder of 58.
Write down 0 as next digit of the result. 
Result so far: 8160.0
Deduct 0 from 58 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 7:
The number 68 fits into 580 8 times, leaving a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 8160.8
The remainder is 36 after subtracting 544 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 8:
68 can be fit into 360 5 times, resulting in a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 8160.85
Subtract 340 from 360 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
The number 68 fits into 200 2 times, leaving a remainder of 64.
The number 2 becomes the next digit in our result. 
Result so far: 8160.852
Subtracting 136 from 200 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 10:
68 can be fit into 640 9 times, resulting in a remainder of 28.
Write down 9 as next digit of the result. 
Result so far: 8160.8529
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.

Step 11:
When dividing 280 by 68, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 8160.85294
Deduct 272 from 280 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 12:
When dividing 80 by 68, we get 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 8160.852941
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.

Going ahead to step 13:
120 divided by 68 is 1 with a remainder of 52.
Put 1 as the next digit of the answer. 
Result so far: 8160.8529411
The remainder is 52 after subtracting 68 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 8160.8529411 and a remainder of 5.2e-07.