7290482 ÷ 503 
The aim is to understand the frequency of 503 in 7290482.

Step 1:
503 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 503

Moving on to step 2:
503 goes into 72 0 times with a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Bring next digit (9) of the dividend behind the 72 and repeat the process: 729 / 503

Going ahead to step 3:
The number 503 fits into 729 1 times, leaving a remainder of 226.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 503 away from 729, we end up with 226.
Append the next digit (0) from the dividend to 226 and continue with: 2260 / 503

Going ahead to step 4:
503 goes into 2260 4 times with a remainder of 248.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we subtract 2012 from 2260, we get 248.
Fetch the next digit (4) from the dividend, attach it to 248 and continue: 2484 / 503

Step 5:
The number 503 fits into 2484 4 times, leaving a remainder of 472.
Use 4 as the next digit of our solution. 
Result so far: 144.0
The remainder is 472 after subtracting 2012 from 2484.
Append the next digit (8) from the dividend to 472 and continue with: 4728 / 503

On to step 6:
If we divide 4728 by 503, we get 9 and a remainder of 201.
Use 9 as the next digit of our solution. 
Result so far: 1449.0
The remainder is 201 after subtracting 4527 from 4728.
Bring next digit (2) of the dividend behind the 201 and repeat the process: 2012 / 503

On to step 7:
If we divide 2012 by 503, we get 4 and a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 14494.0
If we take 2012 away from 2012, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
If we divide 0 by 503, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 14494.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
If we divide 0 by 503, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 14494.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 14494.0, with a leftover of 0.0.