66414535 ÷ 903 
The aim is to understand the frequency of 903 in 66414535.

Step 1:
If we divide 6 by 903, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 903

Advancing to step 2:
66 divided by 903 is 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Bring next digit (4) of the dividend behind the 66 and repeat the process: 664 / 903

Going ahead to step 3:
The number 903 fits into 664 0 times, leaving a remainder of 664.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 664, we get 664.
Bring next digit (1) of the dividend behind the 664 and repeat the process: 6641 / 903

Moving on to step 4:
6641 divided by 903 is 7 with a remainder of 320.
The next digit of our result is 7. 
Result so far: 7.0
Subtract 6321 from 6641 to get 320.
Include the next digit (4) from the dividend after 320, then repeat: 3204 / 903

Let's proceed to step 5:
The number 903 fits into 3204 3 times, leaving a remainder of 495.
Use 3 as the next digit of our solution. 
Result so far: 73.0
The remainder is 495 after subtracting 2709 from 3204.
Grab the next digit (5) from the dividend, add it to 495, then carry on: 4955 / 903

Step 6:
4955 divided by 903 is 5 with a remainder of 440.
Put 5 as the next digit of the answer. 
Result so far: 735.0
Subtract 4515 from 4955 to get 440.
Append the next digit (3) from the dividend to 440 and continue with: 4403 / 903

Moving on to step 7:
If we divide 4403 by 903, we get 4 and a remainder of 791.
The next digit of our result is 4. 
Result so far: 7354.0
If we subtract 3612 from 4403, we get 791.
Include the next digit (5) from the dividend after 791, then repeat: 7915 / 903

Moving on to step 8:
If we divide 7915 by 903, we get 8 and a remainder of 691.
Use 8 as the next digit of our solution. 
Result so far: 73548.0
Subtract 7224 from 7915 to get 691.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6910, and continue the process.

Going ahead to step 9:
903 goes into 6910 7 times with a remainder of 589.
Record the quotient 7 as the next digit in the result. 
Result so far: 73548.7
Deduct 6321 from 6910 and we're left with 589.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5890, and continue the process.

Going ahead to step 10:
903 goes into 5890 6 times with a remainder of 472.
Put 6 as the next digit of the answer. 
Result so far: 73548.76
Subtracting 5418 from 5890 leaves us with 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Advancing to step 11:
903 can be fit into 4720 5 times, resulting in a remainder of 205.
Write down 5 as next digit of the result. 
Result so far: 73548.765
Subtract 4515 from 4720 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Advancing to step 12:
903 goes into 2050 2 times with a remainder of 244.
Record the quotient 2 as the next digit in the result. 
Result so far: 73548.7652
Subtracting 1806 from 2050 leaves us with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Let's proceed to step 13:
If we divide 2440 by 903, we get 2 and a remainder of 634.
The next digit of our result is 2. 
Result so far: 73548.76522
Subtract 1806 from 2440 to get 634.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6340, and continue the process.

The final outcome is 73548.76522, with a leftover of 0.000634.