We divide 9157504 by 903
The aim is to understand the frequency of 903 in 9157504.

On to step 1:
903 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 903

Moving on to step 2:
The number 903 fits into 91 0 times, leaving a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Take the next digit (5) from the dividend and append it to 91, then repeat: 915 / 903

Advancing to step 3:
903 can be fit into 915 1 times, resulting in a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 903 away from 915, we end up with 12.
Grab the next digit (7) from the dividend, add it to 12, then carry on: 127 / 903

Going ahead to step 4:
127 divided by 903 is 0 with a remainder of 127.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 127 to get 127.
Grab the next digit (5) from the dividend, add it to 127, then carry on: 1275 / 903

Let's proceed to step 5:
If we divide 1275 by 903, we get 1 and a remainder of 372.
The number 1 becomes the next digit in our result. 
Result so far: 101.0
Deduct 903 from 1275 and we're left with 372.
Take the next digit (0) from the dividend and append it to 372, then repeat: 3720 / 903

Let's proceed to step 6:
If we divide 3720 by 903, we get 4 and a remainder of 108.
The next digit of our result is 4. 
Result so far: 1014.0
Subtract 3612 from 3720 to get 108.
Bring next digit (4) of the dividend behind the 108 and repeat the process: 1084 / 903

Moving on to step 7:
903 can be fit into 1084 1 times, resulting in a remainder of 181.
Put 1 as the next digit of the answer. 
Result so far: 10141.0
Deduct 903 from 1084 and we're left with 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Moving on to step 8:
The number 903 fits into 1810 2 times, leaving a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 10141.2
If we subtract 1806 from 1810, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
903 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 10141.2
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
The number 903 fits into 400 0 times, leaving a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 10141.2
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final result is 10141.2 with a remainder of 0.04.