We look at the division of 35101220 by 68 
The aim is to understand the frequency of 68 in 35101220.

Moving on to step 1:
When dividing 3 by 68, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 68

Moving on to step 2:
When dividing 35 by 68, we get 0 with a remainder of 35.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 35, we get 35.
Bring next digit (1) of the dividend behind the 35 and repeat the process: 351 / 68

Moving on to step 3:
If we divide 351 by 68, we get 5 and a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 11 after subtracting 340 from 351.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 68

On to step 4:
110 divided by 68 is 1 with a remainder of 42.
Put 1 as the next digit of the answer. 
Result so far: 51.0
Deduct 68 from 110 and we're left with 42.
Bring next digit (1) of the dividend behind the 42 and repeat the process: 421 / 68

Step 5:
The number 68 fits into 421 6 times, leaving a remainder of 13.
The next digit of our result is 6. 
Result so far: 516.0
If we subtract 408 from 421, we get 13.
Append the next digit (2) from the dividend to 13 and continue with: 132 / 68

Moving on to step 6:
68 can be fit into 132 1 times, resulting in a remainder of 64.
Use 1 as the next digit of our solution. 
Result so far: 5161.0
Subtracting 68 from 132 leaves us with 64.
Append the next digit (2) from the dividend to 64 and continue with: 642 / 68

On to step 7:
When dividing 642 by 68, we get 9 with a remainder of 30.
Write down 9 as next digit of the result. 
Result so far: 51619.0
Subtract 612 from 642 to get 30.
Bring next digit (0) of the dividend behind the 30 and repeat the process: 300 / 68

Step 8:
If we divide 300 by 68, we get 4 and a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 516194.0
If we take 272 away from 300, we end up 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.

Moving on to step 9:
68 can be fit into 280 4 times, resulting in a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 516194.4
If we subtract 272 from 280, we get 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 10:
68 goes into 80 1 times with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 516194.41
If we take 68 away from 80, we end up 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.

Let's proceed to step 11:
120 divided by 68 is 1 with a remainder of 52.
Record the quotient 1 as the next digit in the result. 
Result so far: 516194.411
Deduct 68 from 120 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 516194.411, with a leftover of 0.0052.