We're dividing 891076 by 75 
The aim is to understand the frequency of 75 in 891076.

Step 1:
75 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 75

Advancing to step 2:
89 divided by 75 is 1 with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 75 from 89, we get 14.
Include the next digit (1) from the dividend after 14, then repeat: 141 / 75

On to step 3:
When dividing 141 by 75, we get 1 with a remainder of 66.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we take 75 away from 141, we end up with 66.
Grab the next digit (0) from the dividend, add it to 66, then carry on: 660 / 75

Step 4:
The number 75 fits into 660 8 times, leaving a remainder of 60.
Write down 8 as next digit of the result. 
Result so far: 118.0
If we subtract 600 from 660, we get 60.
Include the next digit (7) from the dividend after 60, then repeat: 607 / 75

Moving on to step 5:
If we divide 607 by 75, we get 8 and a remainder of 7.
The next digit of our result is 8. 
Result so far: 1188.0
If we subtract 600 from 607, we get 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 75

Going ahead to step 6:
The number 75 fits into 76 1 times, leaving a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 11881.0
If we subtract 75 from 76, 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.

Let's proceed to step 7:
75 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 11881.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
100 divided by 75 is 1 with a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 11881.01
Deduct 75 from 100 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 9:
When dividing 250 by 75, we get 3 with a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 11881.013
The remainder is 25 after subtracting 225 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 10:
75 can be fit into 250 3 times, resulting in a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 11881.0133
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 11881.0133 with a remainder of 0.00025.