We look at the division of 28117286 by 375 
The aim is to understand the frequency of 375 in 28117286.

Step 1:
375 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 375

Moving on to step 2:
The number 375 fits into 28 0 times, leaving a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 28, we get 28.
Take the next digit (1) from the dividend and append it to 28, then repeat: 281 / 375

Advancing to step 3:
375 goes into 281 0 times with a remainder of 281.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 281 and we're left with 281.
Include the next digit (1) from the dividend after 281, then repeat: 2811 / 375

On to step 4:
375 goes into 2811 7 times with a remainder of 186.
Write down 7 as next digit of the result. 
Result so far: 7.0
The remainder is 186 after subtracting 2625 from 2811.
Include the next digit (7) from the dividend after 186, then repeat: 1867 / 375

Step 5:
If we divide 1867 by 375, we get 4 and a remainder of 367.
Record the quotient 4 as the next digit in the result. 
Result so far: 74.0
Deduct 1500 from 1867 and we're left with 367.
Fetch the next digit (2) from the dividend, attach it to 367 and continue: 3672 / 375

Advancing to step 6:
3672 divided by 375 is 9 with a remainder of 297.
Record the quotient 9 as the next digit in the result. 
Result so far: 749.0
If we subtract 3375 from 3672, we get 297.
Take the next digit (8) from the dividend and append it to 297, then repeat: 2978 / 375

Moving on to step 7:
375 goes into 2978 7 times with a remainder of 353.
Put 7 as the next digit of the answer. 
Result so far: 7497.0
Subtracting 2625 from 2978 leaves us with 353.
Bring next digit (6) of the dividend behind the 353 and repeat the process: 3536 / 375

Moving on to step 8:
When dividing 3536 by 375, we get 9 with a remainder of 161.
Put 9 as the next digit of the answer. 
Result so far: 74979.0
Deduct 3375 from 3536 and we're left with 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Let's proceed to step 9:
375 goes into 1610 4 times with a remainder of 110.
The number 4 becomes the next digit in our result. 
Result so far: 74979.4
The remainder is 110 after subtracting 1500 from 1610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 10:
1100 divided by 375 is 2 with a remainder of 350.
The number 2 becomes the next digit in our result. 
Result so far: 74979.42
Deduct 750 from 1100 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

On to step 11:
3500 divided by 375 is 9 with a remainder of 125.
The next digit of our result is 9. 
Result so far: 74979.429
Subtracting 3375 from 3500 leaves us with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Let's proceed to step 12:
When dividing 1250 by 375, we get 3 with a remainder of 125.
Write down 3 as next digit of the result. 
Result so far: 74979.4293
If we take 1125 away from 1250, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Going ahead to step 13:
375 goes into 1250 3 times with a remainder of 125.
Write down 3 as next digit of the result. 
Result so far: 74979.42933
Subtract 1125 from 1250 to get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

The quotient of the division is 74979.42933, and the remainder is 0.000125.