855540 ÷ 75 
The aim is to understand the frequency of 75 in 855540.

Going ahead to step 1:
8 divided by 75 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 75

Moving on to step 2:
85 divided by 75 is 1 with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 75 from 85 leaves us with 10.
Grab the next digit (5) from the dividend, add it to 10, then carry on: 105 / 75

Moving on to step 3:
75 can be fit into 105 1 times, resulting in a remainder of 30.
The next digit of our result is 1. 
Result so far: 11.0
Subtracting 75 from 105 leaves us with 30.
Grab the next digit (5) from the dividend, add it to 30, then carry on: 305 / 75

Advancing to step 4:
If we divide 305 by 75, we get 4 and a remainder of 5.
The next digit of our result is 4. 
Result so far: 114.0
Deduct 300 from 305 and we're left with 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 75

Let's proceed to step 5:
54 divided by 75 is 0 with a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 1140.0
If we subtract 0 from 54, we get 54.
Grab the next digit (0) from the dividend, add it to 54, then carry on: 540 / 75

Going ahead to step 6:
If we divide 540 by 75, we get 7 and a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 11407.0
Subtract 525 from 540 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 7:
75 goes into 150 2 times with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 11407.2
If we take 150 away from 150, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
If we divide 0 by 75, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 11407.2
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
When dividing 0 by 75, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 11407.2
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 11407.2 with a remainder of 0.0.