557500 divided by 75 
The aim is to understand the frequency of 75 in 557500.

Step 1:
75 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 75

Step 2:
The number 75 fits into 55 0 times, leaving a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Include the next digit (7) from the dividend after 55, then repeat: 557 / 75

Going ahead to step 3:
75 goes into 557 7 times with a remainder of 32.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 525 from 557 to get 32.
Append the next digit (5) from the dividend to 32 and continue with: 325 / 75

On to step 4:
The number 75 fits into 325 4 times, leaving a remainder of 25.
Use 4 as the next digit of our solution. 
Result so far: 74.0
If we subtract 300 from 325, we get 25.
Grab the next digit (0) from the dividend, add it to 25, then carry on: 250 / 75

Let's proceed to step 5:
When dividing 250 by 75, we get 3 with a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 743.0
If we take 225 away from 250, we end up with 25.
Include the next digit (0) from the dividend after 25, then repeat: 250 / 75

Moving on to step 6:
75 goes into 250 3 times with a remainder of 25.
The next digit of our result is 3. 
Result so far: 7433.0
Subtracting 225 from 250 leaves us 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.

Step 7:
When dividing 250 by 75, we get 3 with a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 7433.3
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.

On to step 8:
75 can be fit into 250 3 times, resulting in a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 7433.33
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.

The final outcome is 7433.33, with a leftover of 0.025.