553521 ÷ 68 
The aim is to understand the frequency of 68 in 553521.

Advancing to step 1:
The number 68 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 68

On to step 2:
55 divided by 68 is 0 with a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Include the next digit (3) from the dividend after 55, then repeat: 553 / 68

Let's proceed to step 3:
The number 68 fits into 553 8 times, leaving a remainder of 9.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 544 from 553 to get 9.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 68

Advancing to step 4:
68 goes into 95 1 times with a remainder of 27.
Use 1 as the next digit of our solution. 
Result so far: 81.0
If we subtract 68 from 95, we get 27.
Grab the next digit (2) from the dividend, add it to 27, then carry on: 272 / 68

Step 5:
272 divided by 68 is 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 814.0
If we subtract 272 from 272, we get 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 68

On to step 6:
When dividing 1 by 68, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 8140.0
If we subtract 0 from 1, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
10 divided by 68 is 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 8140.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
When dividing 100 by 68, we get 1 with a remainder of 32.
Write down 1 as next digit of the result. 
Result so far: 8140.01
Deduct 68 from 100 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 9:
When dividing 320 by 68, we get 4 with a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 8140.014
The remainder is 48 after subtracting 272 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
68 goes into 480 7 times with a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 8140.0147
The remainder is 4 after subtracting 476 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 11:
The number 68 fits into 40 0 times, leaving a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 8140.0147
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 12:
400 divided by 68 is 5 with a remainder of 60.
Put 5 as the next digit of the answer. 
Result so far: 8140.014705
Subtract 340 from 400 to 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.

Let's proceed to step 13:
If we divide 600 by 68, we get 8 and a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 8140.0147058
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.

Step 14:
68 goes into 560 8 times with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 8140.01470588
Subtract 544 from 560 to get 16.
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 result is 8140.01470588 with a remainder of 1.6e-08.