We divide 28021999 by 503
The aim is to understand the frequency of 503 in 28021999.

Moving on to step 1:
503 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 503

Let's proceed to step 2:
503 goes into 28 0 times with a remainder of 28.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Fetch the next digit (0) from the dividend, attach it to 28 and continue: 280 / 503

Step 3:
280 divided by 503 is 0 with a remainder of 280.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 280 and we're left with 280.
Grab the next digit (2) from the dividend, add it to 280, then carry on: 2802 / 503

Advancing to step 4:
If we divide 2802 by 503, we get 5 and a remainder of 287.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 287 after subtracting 2515 from 2802.
Bring next digit (1) of the dividend behind the 287 and repeat the process: 2871 / 503

On to step 5:
The number 503 fits into 2871 5 times, leaving a remainder of 356.
Use 5 as the next digit of our solution. 
Result so far: 55.0
Subtract 2515 from 2871 to get 356.
Fetch the next digit (9) from the dividend, attach it to 356 and continue: 3569 / 503

On to step 6:
If we divide 3569 by 503, we get 7 and a remainder of 48.
Use 7 as the next digit of our solution. 
Result so far: 557.0
Subtracting 3521 from 3569 leaves us with 48.
Grab the next digit (9) from the dividend, add it to 48, then carry on: 489 / 503

Advancing to step 7:
If we divide 489 by 503, we get 0 and a remainder of 489.
Put 0 as the next digit of the answer. 
Result so far: 5570.0
Subtract 0 from 489 to get 489.
Include the next digit (9) from the dividend after 489, then repeat: 4899 / 503

On to step 8:
The number 503 fits into 4899 9 times, leaving a remainder of 372.
The next digit of our result is 9. 
Result so far: 55709.0
The remainder is 372 after subtracting 4527 from 4899.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Let's proceed to step 9:
The number 503 fits into 3720 7 times, leaving a remainder of 199.
Record the quotient 7 as the next digit in the result. 
Result so far: 55709.7
If we take 3521 away from 3720, we end up with 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Step 10:
503 goes into 1990 3 times with a remainder of 481.
Write down 3 as next digit of the result. 
Result so far: 55709.73
The remainder is 481 after subtracting 1509 from 1990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

On to step 11:
When dividing 4810 by 503, we get 9 with a remainder of 283.
Write down 9 as next digit of the result. 
Result so far: 55709.739
If we subtract 4527 from 4810, we get 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Step 12:
2830 divided by 503 is 5 with a remainder of 315.
The next digit of our result is 5. 
Result so far: 55709.7395
The remainder is 315 after subtracting 2515 from 2830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Advancing to step 13:
The number 503 fits into 3150 6 times, leaving a remainder of 132.
Write down 6 as next digit of the result. 
Result so far: 55709.73956
The remainder is 132 after subtracting 3018 from 3150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Moving on to step 14:
When dividing 1320 by 503, we get 2 with a remainder of 314.
The number 2 becomes the next digit in our result. 
Result so far: 55709.739562
The remainder is 314 after subtracting 1006 from 1320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Moving on to step 15:
503 can be fit into 3140 6 times, resulting in a remainder of 122.
Record the quotient 6 as the next digit in the result. 
Result so far: 55709.7395626
Subtracting 3018 from 3140 leaves us with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Step 16:
503 goes into 1220 2 times with a remainder of 214.
Write down 2 as next digit of the result. 
Result so far: 55709.73956262
If we subtract 1006 from 1220, we get 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

The quotient of the division is 55709.73956262, and the remainder is 2.14e-07.