We divide 503003 by 28
The aim is to understand the frequency of 28 in 503003.

Let's proceed to step 1:
5 divided by 28 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 28

Going ahead to step 2:
28 can be fit into 50 1 times, resulting in a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 28 from 50 leaves us with 22.
Include the next digit (3) from the dividend after 22, then repeat: 223 / 28

On to step 3:
28 can be fit into 223 7 times, resulting in a remainder of 27.
Put 7 as the next digit of the answer. 
Result so far: 17.0
Subtracting 196 from 223 leaves us with 27.
Include the next digit (0) from the dividend after 27, then repeat: 270 / 28

Step 4:
When dividing 270 by 28, we get 9 with a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 179.0
The remainder is 18 after subtracting 252 from 270.
Append the next digit (0) from the dividend to 18 and continue with: 180 / 28

On to step 5:
When dividing 180 by 28, we get 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 1796.0
Subtracting 168 from 180 leaves us with 12.
Bring next digit (3) of the dividend behind the 12 and repeat the process: 123 / 28

Advancing to step 6:
If we divide 123 by 28, we get 4 and a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 17964.0
The remainder is 11 after subtracting 112 from 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
If we divide 110 by 28, we get 3 and a remainder of 26.
Use 3 as the next digit of our solution. 
Result so far: 17964.3
Subtracting 84 from 110 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 8:
28 can be fit into 260 9 times, resulting in a remainder of 8.
The next digit of our result is 9. 
Result so far: 17964.39
The remainder is 8 after subtracting 252 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
28 can be fit into 80 2 times, resulting in a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 17964.392
Deduct 56 from 80 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
The number 28 fits into 240 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 17964.3928
If we take 224 away from 240, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 11:
28 goes into 160 5 times with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 17964.39285
If we take 140 away from 160, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 12:
200 divided by 28 is 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 17964.392857
Subtracting 196 from 200 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 13:
When dividing 40 by 28, we get 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 17964.3928571
Subtract 28 from 40 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 14:
The number 28 fits into 120 4 times, leaving a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 17964.39285714
The remainder is 8 after subtracting 112 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 17964.39285714 with a remaining 8e-09.