We look at the division of 13085614 by 503 
The aim is to understand the frequency of 503 in 13085614.

Moving on to step 1:
When dividing 1 by 503, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 503

Step 2:
13 divided by 503 is 0 with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Bring next digit (0) of the dividend behind the 13 and repeat the process: 130 / 503

On to step 3:
503 can be fit into 130 0 times, resulting in a remainder of 130.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 130 to get 130.
Append the next digit (8) from the dividend to 130 and continue with: 1308 / 503

Moving on to step 4:
The number 503 fits into 1308 2 times, leaving a remainder of 302.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 1006 from 1308, we get 302.
Include the next digit (5) from the dividend after 302, then repeat: 3025 / 503

Let's proceed to step 5:
If we divide 3025 by 503, we get 6 and a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
If we subtract 3018 from 3025, we get 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 503

Advancing to step 6:
503 can be fit into 76 0 times, resulting in a remainder of 76.
Record the quotient 0 as the next digit in the result. 
Result so far: 260.0
Subtracting 0 from 76 leaves us with 76.
Take the next digit (1) from the dividend and append it to 76, then repeat: 761 / 503

Let's proceed to step 7:
The number 503 fits into 761 1 times, leaving a remainder of 258.
Write down 1 as next digit of the result. 
Result so far: 2601.0
If we take 503 away from 761, we end up with 258.
Grab the next digit (4) from the dividend, add it to 258, then carry on: 2584 / 503

Step 8:
2584 divided by 503 is 5 with a remainder of 69.
Write down 5 as next digit of the result. 
Result so far: 26015.0
Subtracting 2515 from 2584 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 9:
If we divide 690 by 503, we get 1 and a remainder of 187.
The next digit of our result is 1. 
Result so far: 26015.1
Subtracting 503 from 690 leaves us with 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Going ahead to step 10:
The number 503 fits into 1870 3 times, leaving a remainder of 361.
Put 3 as the next digit of the answer. 
Result so far: 26015.13
If we subtract 1509 from 1870, we get 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

On to step 11:
When dividing 3610 by 503, we get 7 with a remainder of 89.
The number 7 becomes the next digit in our result. 
Result so far: 26015.137
The remainder is 89 after subtracting 3521 from 3610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Advancing to step 12:
The number 503 fits into 890 1 times, leaving a remainder of 387.
The number 1 becomes the next digit in our result. 
Result so far: 26015.1371
The remainder is 387 after subtracting 503 from 890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

Step 13:
503 goes into 3870 7 times with a remainder of 349.
Record the quotient 7 as the next digit in the result. 
Result so far: 26015.13717
The remainder is 349 after subtracting 3521 from 3870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

On to step 14:
503 goes into 3490 6 times with a remainder of 472.
The next digit of our result is 6. 
Result so far: 26015.137176
If we take 3018 away from 3490, we end up 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.

Moving on to step 15:
If we divide 4720 by 503, we get 9 and a remainder of 193.
Write down 9 as next digit of the result. 
Result so far: 26015.1371769
Subtract 4527 from 4720 to get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Advancing to step 16:
503 can be fit into 1930 3 times, resulting in a remainder of 421.
The next digit of our result is 3. 
Result so far: 26015.13717693
Subtract 1509 from 1930 to get 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

The quotient of the division is 26015.13717693, and the remainder is 4.21e-07.