We look at the division of 17659242 by 903 
The aim is to understand the frequency of 903 in 17659242.

Going ahead to step 1:
When dividing 1 by 903, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 903

Step 2:
903 goes into 17 0 times with a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 17, we get 17.
Bring next digit (6) of the dividend behind the 17 and repeat the process: 176 / 903

Let's proceed to step 3:
903 can be fit into 176 0 times, resulting in a remainder of 176.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 176, we end up with 176.
Bring next digit (5) of the dividend behind the 176 and repeat the process: 1765 / 903

Advancing to step 4:
903 can be fit into 1765 1 times, resulting in a remainder of 862.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 903 from 1765 leaves us with 862.
Append the next digit (9) from the dividend to 862 and continue with: 8629 / 903

Going ahead to step 5:
903 can be fit into 8629 9 times, resulting in a remainder of 502.
The next digit of our result is 9. 
Result so far: 19.0
The remainder is 502 after subtracting 8127 from 8629.
Include the next digit (2) from the dividend after 502, then repeat: 5022 / 903

Let's proceed to step 6:
The number 903 fits into 5022 5 times, leaving a remainder of 507.
Put 5 as the next digit of the answer. 
Result so far: 195.0
Subtracting 4515 from 5022 leaves us with 507.
Grab the next digit (4) from the dividend, add it to 507, then carry on: 5074 / 903

On to step 7:
903 can be fit into 5074 5 times, resulting in a remainder of 559.
The number 5 becomes the next digit in our result. 
Result so far: 1955.0
Subtract 4515 from 5074 to get 559.
Append the next digit (2) from the dividend to 559 and continue with: 5592 / 903

Let's proceed to step 8:
When dividing 5592 by 903, we get 6 with a remainder of 174.
Use 6 as the next digit of our solution. 
Result so far: 19556.0
If we take 5418 away from 5592, we end up with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Step 9:
1740 divided by 903 is 1 with a remainder of 837.
The next digit of our result is 1. 
Result so far: 19556.1
If we take 903 away from 1740, we end up with 837.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8370, and continue the process.

On to step 10:
903 goes into 8370 9 times with a remainder of 243.
Put 9 as the next digit of the answer. 
Result so far: 19556.19
Subtract 8127 from 8370 to get 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Going ahead to step 11:
2430 divided by 903 is 2 with a remainder of 624.
Use 2 as the next digit of our solution. 
Result so far: 19556.192
If we subtract 1806 from 2430, we get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Going ahead to step 12:
903 can be fit into 6240 6 times, resulting in a remainder of 822.
The number 6 becomes the next digit in our result. 
Result so far: 19556.1926
Deduct 5418 from 6240 and we're left with 822.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8220, and continue the process.

Moving on to step 13:
8220 divided by 903 is 9 with a remainder of 93.
The next digit of our result is 9. 
Result so far: 19556.19269
The remainder is 93 after subtracting 8127 from 8220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Step 14:
If we divide 930 by 903, we get 1 and a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 19556.192691
The remainder is 27 after subtracting 903 from 930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 15:
The number 903 fits into 270 0 times, leaving a remainder of 270.
Use 0 as the next digit of our solution. 
Result so far: 19556.192691
Subtract 0 from 270 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 16:
When dividing 2700 by 903, we get 2 with a remainder of 894.
The next digit of our result is 2. 
Result so far: 19556.19269102
If we subtract 1806 from 2700, we get 894.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8940, and continue the process.

The final outcome is 19556.19269102, with a leftover of 8.94e-07.