We're dividing 14777285 by 503 
The aim is to understand the frequency of 503 in 14777285.

Step 1:
If we divide 1 by 503, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 503

Advancing to step 2:
When dividing 14 by 503, we get 0 with a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 14 to get 14.
Take the next digit (7) from the dividend and append it to 14, then repeat: 147 / 503

Going ahead to step 3:
147 divided by 503 is 0 with a remainder of 147.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 147, we end up with 147.
Take the next digit (7) from the dividend and append it to 147, then repeat: 1477 / 503

On to step 4:
If we divide 1477 by 503, we get 2 and a remainder of 471.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 1006 from 1477 and we're left with 471.
Fetch the next digit (7) from the dividend, attach it to 471 and continue: 4717 / 503

Advancing to step 5:
503 goes into 4717 9 times with a remainder of 190.
Put 9 as the next digit of the answer. 
Result so far: 29.0
Subtracting 4527 from 4717 leaves us with 190.
Append the next digit (2) from the dividend to 190 and continue with: 1902 / 503

Advancing to step 6:
If we divide 1902 by 503, we get 3 and a remainder of 393.
Use 3 as the next digit of our solution. 
Result so far: 293.0
The remainder is 393 after subtracting 1509 from 1902.
Include the next digit (8) from the dividend after 393, then repeat: 3938 / 503

Let's proceed to step 7:
The number 503 fits into 3938 7 times, leaving a remainder of 417.
Put 7 as the next digit of the answer. 
Result so far: 2937.0
If we subtract 3521 from 3938, we get 417.
Append the next digit (5) from the dividend to 417 and continue with: 4175 / 503

Moving on to step 8:
503 can be fit into 4175 8 times, resulting in a remainder of 151.
Write down 8 as next digit of the result. 
Result so far: 29378.0
Subtract 4024 from 4175 to get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Step 9:
The number 503 fits into 1510 3 times, leaving a remainder of 1.
The next digit of our result is 3. 
Result so far: 29378.3
Subtracting 1509 from 1510 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 10:
When dividing 10 by 503, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 29378.3
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 11:
503 goes into 100 0 times with a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 29378.3
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 29378.3, with a leftover of 0.01.