57339086 ÷ 75 
The aim is to understand the frequency of 75 in 57339086.

Going ahead to step 1:
75 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 75

Let's proceed to step 2:
When dividing 57 by 75, we get 0 with a remainder of 57.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 57 after subtracting 0 from 57.
Take the next digit (3) from the dividend and append it to 57, then repeat: 573 / 75

On to step 3:
75 can be fit into 573 7 times, resulting in a remainder of 48.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 525 from 573 to get 48.
Grab the next digit (3) from the dividend, add it to 48, then carry on: 483 / 75

Advancing to step 4:
The number 75 fits into 483 6 times, leaving a remainder of 33.
The number 6 becomes the next digit in our result. 
Result so far: 76.0
Deduct 450 from 483 and we're left with 33.
Take the next digit (9) from the dividend and append it to 33, then repeat: 339 / 75

On to step 5:
The number 75 fits into 339 4 times, leaving a remainder of 39.
Use 4 as the next digit of our solution. 
Result so far: 764.0
If we subtract 300 from 339, we get 39.
Fetch the next digit (0) from the dividend, attach it to 39 and continue: 390 / 75

Moving on to step 6:
390 divided by 75 is 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 7645.0
If we take 375 away from 390, we end up with 15.
Fetch the next digit (8) from the dividend, attach it to 15 and continue: 158 / 75

On to step 7:
75 goes into 158 2 times with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 76452.0
The remainder is 8 after subtracting 150 from 158.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 75

Moving on to step 8:
75 can be fit into 86 1 times, resulting in a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 764521.0
Deduct 75 from 86 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 9:
If we divide 110 by 75, we get 1 and a remainder of 35.
Write down 1 as next digit of the result. 
Result so far: 764521.1
The remainder is 35 after subtracting 75 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 10:
When dividing 350 by 75, we get 4 with a remainder of 50.
Write down 4 as next digit of the result. 
Result so far: 764521.14
The remainder is 50 after subtracting 300 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 11:
75 can be fit into 500 6 times, resulting in a remainder of 50.
Put 6 as the next digit of the answer. 
Result so far: 764521.146
Deduct 450 from 500 and we're left 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.

On to step 12:
The number 75 fits into 500 6 times, leaving a remainder of 50.
The next digit of our result is 6. 
Result so far: 764521.1466
Deduct 450 from 500 and we're left 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 764521.1466 with a remainder of 0.0005.