We're dividing 948139 by 75 
The aim is to understand the frequency of 75 in 948139.

Going ahead to step 1:
When dividing 9 by 75, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (4) from the dividend after 9, then repeat: 94 / 75

Let's proceed to step 2:
94 divided by 75 is 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 75 from 94 to get 19.
Include the next digit (8) from the dividend after 19, then repeat: 198 / 75

On to step 3:
75 can be fit into 198 2 times, resulting in a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 150 from 198 to get 48.
Append the next digit (1) from the dividend to 48 and continue with: 481 / 75

On to step 4:
481 divided by 75 is 6 with a remainder of 31.
Write down 6 as next digit of the result. 
Result so far: 126.0
Deduct 450 from 481 and we're left with 31.
Bring next digit (3) of the dividend behind the 31 and repeat the process: 313 / 75

On to step 5:
75 can be fit into 313 4 times, resulting in a remainder of 13.
Put 4 as the next digit of the answer. 
Result so far: 1264.0
If we take 300 away from 313, we end up with 13.
Append the next digit (9) from the dividend to 13 and continue with: 139 / 75

Advancing to step 6:
139 divided by 75 is 1 with a remainder of 64.
The next digit of our result is 1. 
Result so far: 12641.0
If we take 75 away from 139, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 7:
When dividing 640 by 75, we get 8 with a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 12641.8
The remainder is 40 after subtracting 600 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 8:
75 can be fit into 400 5 times, resulting in a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 12641.85
The remainder is 25 after subtracting 375 from 400.
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:
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: 12641.853
Deduct 225 from 250 and we're left 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 10:
When dividing 250 by 75, we get 3 with a remainder of 25.
Record the quotient 3 as the next digit in the result. 
Result so far: 12641.8533
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.

The quotient of the division is 12641.8533, and the remainder is 0.00025.