17038476 divided by 903 
The aim is to understand the frequency of 903 in 17038476.

Going ahead to step 1:
The number 903 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 903

On to step 2:
The number 903 fits into 17 0 times, leaving a remainder of 17.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Grab the next digit (0) from the dividend, add it to 17, then carry on: 170 / 903

Moving on to step 3:
If we divide 170 by 903, we get 0 and a remainder of 170.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 170 and we're left with 170.
Append the next digit (3) from the dividend to 170 and continue with: 1703 / 903

On to step 4:
When dividing 1703 by 903, we get 1 with a remainder of 800.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 903 from 1703 and we're left with 800.
Take the next digit (8) from the dividend and append it to 800, then repeat: 8008 / 903

On to step 5:
If we divide 8008 by 903, we get 8 and a remainder of 784.
The next digit of our result is 8. 
Result so far: 18.0
If we take 7224 away from 8008, we end up with 784.
Bring next digit (4) of the dividend behind the 784 and repeat the process: 7844 / 903

Moving on to step 6:
If we divide 7844 by 903, we get 8 and a remainder of 620.
Record the quotient 8 as the next digit in the result. 
Result so far: 188.0
The remainder is 620 after subtracting 7224 from 7844.
Take the next digit (7) from the dividend and append it to 620, then repeat: 6207 / 903

On to step 7:
When dividing 6207 by 903, we get 6 with a remainder of 789.
Put 6 as the next digit of the answer. 
Result so far: 1886.0
Deduct 5418 from 6207 and we're left with 789.
Include the next digit (6) from the dividend after 789, then repeat: 7896 / 903

Moving on to step 8:
If we divide 7896 by 903, we get 8 and a remainder of 672.
The number 8 becomes the next digit in our result. 
Result so far: 18868.0
The remainder is 672 after subtracting 7224 from 7896.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

Step 9:
903 goes into 6720 7 times with a remainder of 399.
Put 7 as the next digit of the answer. 
Result so far: 18868.7
If we take 6321 away from 6720, we end up with 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Advancing to step 10:
If we divide 3990 by 903, we get 4 and a remainder of 378.
Record the quotient 4 as the next digit in the result. 
Result so far: 18868.74
Subtracting 3612 from 3990 leaves us with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

On to step 11:
903 can be fit into 3780 4 times, resulting in a remainder of 168.
Write down 4 as next digit of the result. 
Result so far: 18868.744
Subtract 3612 from 3780 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

The final result is 18868.744 with a remainder of 0.0168.