We're dividing 847807 by 75 
The aim is to understand the frequency of 75 in 847807.

On to step 1:
8 divided by 75 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 75

Moving on to step 2:
When dividing 84 by 75, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 75 away from 84, we end up with 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 75

Going ahead to step 3:
97 divided by 75 is 1 with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 22 after subtracting 75 from 97.
Bring next digit (8) of the dividend behind the 22 and repeat the process: 228 / 75

Advancing to step 4:
When dividing 228 by 75, we get 3 with a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 113.0
The remainder is 3 after subtracting 225 from 228.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 75

Going ahead to step 5:
The number 75 fits into 30 0 times, leaving a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 1130.0
Deduct 0 from 30 and we're left with 30.
Take the next digit (7) from the dividend and append it to 30, then repeat: 307 / 75

Going ahead to step 6:
75 goes into 307 4 times with a remainder of 7.
The number 4 becomes the next digit in our result. 
Result so far: 11304.0
The remainder is 7 after subtracting 300 from 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
75 can be fit into 70 0 times, resulting in a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 11304.0
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 8:
700 divided by 75 is 9 with a remainder of 25.
Put 9 as the next digit of the answer. 
Result so far: 11304.09
Subtract 675 from 700 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 9:
75 can be fit into 250 3 times, resulting in a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 11304.093
If we subtract 225 from 250, we get 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 10:
If we divide 250 by 75, we get 3 and a remainder of 25.
The next digit of our result is 3. 
Result so far: 11304.0933
If we take 225 away from 250, we end up 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.

After the division, we end up with 11304.0933 and a remainder of 0.00025.