We look at the division of 68121432 by 868 
The aim is to understand the frequency of 868 in 68121432.

On to step 1:
868 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 868

Moving on to step 2:
If we divide 68 by 868, we get 0 and a remainder of 68.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 68, we get 68.
Append the next digit (1) from the dividend to 68 and continue with: 681 / 868

Step 3:
868 can be fit into 681 0 times, resulting in a remainder of 681.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 681 after subtracting 0 from 681.
Append the next digit (2) from the dividend to 681 and continue with: 6812 / 868

Step 4:
The number 868 fits into 6812 7 times, leaving a remainder of 736.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 6076 away from 6812, we end up with 736.
Append the next digit (1) from the dividend to 736 and continue with: 7361 / 868

Step 5:
The number 868 fits into 7361 8 times, leaving a remainder of 417.
The next digit of our result is 8. 
Result so far: 78.0
If we take 6944 away from 7361, we end up with 417.
Bring next digit (4) of the dividend behind the 417 and repeat the process: 4174 / 868

Step 6:
4174 divided by 868 is 4 with a remainder of 702.
Use 4 as the next digit of our solution. 
Result so far: 784.0
The remainder is 702 after subtracting 3472 from 4174.
Append the next digit (3) from the dividend to 702 and continue with: 7023 / 868

Step 7:
868 can be fit into 7023 8 times, resulting in a remainder of 79.
The number 8 becomes the next digit in our result. 
Result so far: 7848.0
Subtracting 6944 from 7023 leaves us with 79.
Fetch the next digit (2) from the dividend, attach it to 79 and continue: 792 / 868

On to step 8:
When dividing 792 by 868, we get 0 with a remainder of 792.
The next digit of our result is 0. 
Result so far: 78480.0
Deduct 0 from 792 and we're left with 792.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7920, and continue the process.

Advancing to step 9:
When dividing 7920 by 868, we get 9 with a remainder of 108.
Write down 9 as next digit of the result. 
Result so far: 78480.9
Subtracting 7812 from 7920 leaves us with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Moving on to step 10:
If we divide 1080 by 868, we get 1 and a remainder of 212.
Use 1 as the next digit of our solution. 
Result so far: 78480.91
Subtracting 868 from 1080 leaves us with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Let's proceed to step 11:
When dividing 2120 by 868, we get 2 with a remainder of 384.
Put 2 as the next digit of the answer. 
Result so far: 78480.912
Subtracting 1736 from 2120 leaves us with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Advancing to step 12:
The number 868 fits into 3840 4 times, leaving a remainder of 368.
The number 4 becomes the next digit in our result. 
Result so far: 78480.9124
If we take 3472 away from 3840, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Step 13:
3680 divided by 868 is 4 with a remainder of 208.
Write down 4 as next digit of the result. 
Result so far: 78480.91244
Deduct 3472 from 3680 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

After the division, we end up with 78480.91244 and a remainder of 0.000208.