We look at the division of 75207912 by 868 
The aim is to understand the frequency of 868 in 75207912.

Let's proceed to step 1:
If we divide 7 by 868, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 868

On to step 2:
868 goes into 75 0 times with a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 75, we get 75.
Bring next digit (2) of the dividend behind the 75 and repeat the process: 752 / 868

Let's proceed to step 3:
When dividing 752 by 868, we get 0 with a remainder of 752.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 752 to get 752.
Fetch the next digit (0) from the dividend, attach it to 752 and continue: 7520 / 868

Let's proceed to step 4:
868 goes into 7520 8 times with a remainder of 576.
Write down 8 as next digit of the result. 
Result so far: 8.0
Deduct 6944 from 7520 and we're left with 576.
Include the next digit (7) from the dividend after 576, then repeat: 5767 / 868

Let's proceed to step 5:
5767 divided by 868 is 6 with a remainder of 559.
Use 6 as the next digit of our solution. 
Result so far: 86.0
The remainder is 559 after subtracting 5208 from 5767.
Take the next digit (9) from the dividend and append it to 559, then repeat: 5599 / 868

Advancing to step 6:
If we divide 5599 by 868, we get 6 and a remainder of 391.
Put 6 as the next digit of the answer. 
Result so far: 866.0
If we subtract 5208 from 5599, we get 391.
Grab the next digit (1) from the dividend, add it to 391, then carry on: 3911 / 868

Let's proceed to step 7:
3911 divided by 868 is 4 with a remainder of 439.
Write down 4 as next digit of the result. 
Result so far: 8664.0
The remainder is 439 after subtracting 3472 from 3911.
Take the next digit (2) from the dividend and append it to 439, then repeat: 4392 / 868

Let's proceed to step 8:
If we divide 4392 by 868, we get 5 and a remainder of 52.
Put 5 as the next digit of the answer. 
Result so far: 86645.0
If we subtract 4340 from 4392, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 9:
868 can be fit into 520 0 times, resulting in a remainder of 520.
Use 0 as the next digit of our solution. 
Result so far: 86645.0
Deduct 0 from 520 and we're left with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Moving on to step 10:
868 can be fit into 5200 5 times, resulting in a remainder of 860.
The next digit of our result is 5. 
Result so far: 86645.05
Subtracting 4340 from 5200 leaves us with 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8600, and continue the process.

Going ahead to step 11:
When dividing 8600 by 868, we get 9 with a remainder of 788.
Record the quotient 9 as the next digit in the result. 
Result so far: 86645.059
Subtract 7812 from 8600 to get 788.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7880, and continue the process.

On to step 12:
868 goes into 7880 9 times with a remainder of 68.
The next digit of our result is 9. 
Result so far: 86645.0599
Subtract 7812 from 7880 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

The final result is 86645.0599 with a remainder of 0.00068.