78524 divided by 75 
The aim is to understand the frequency of 75 in 78524.

Step 1:
If we divide 7 by 75, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 75

Let's proceed to step 2:
75 goes into 78 1 times with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 75 from 78 and we're left with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 75

Advancing to step 3:
75 goes into 35 0 times with a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
The remainder is 35 after subtracting 0 from 35.
Append the next digit (2) from the dividend to 35 and continue with: 352 / 75

Advancing to step 4:
352 divided by 75 is 4 with a remainder of 52.
Record the quotient 4 as the next digit in the result. 
Result so far: 104.0
If we take 300 away from 352, we end up with 52.
Grab the next digit (4) from the dividend, add it to 52, then carry on: 524 / 75

Advancing to step 5:
75 can be fit into 524 6 times, resulting in a remainder of 74.
Use 6 as the next digit of our solution. 
Result so far: 1046.0
Deduct 450 from 524 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 6:
75 can be fit into 740 9 times, resulting in a remainder of 65.
Use 9 as the next digit of our solution. 
Result so far: 1046.9
Subtract 675 from 740 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 7:
75 goes into 650 8 times with a remainder of 50.
Write down 8 as next digit of the result. 
Result so far: 1046.98
If we take 600 away from 650, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 8:
If we divide 500 by 75, we get 6 and a remainder of 50.
Use 6 as the next digit of our solution. 
Result so far: 1046.986
Subtract 450 from 500 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
75 can be fit into 500 6 times, resulting in a remainder of 50.
The next digit of our result is 6. 
Result so far: 1046.9866
If we take 450 away from 500, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 1046.9866 with a remainder of 0.0005.