290003 ÷ 28 
The aim is to understand the frequency of 28 in 290003.

Step 1:
2 divided by 28 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 28

Advancing to step 2:
If we divide 29 by 28, we get 1 and a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 28 from 29 leaves us with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 28

Step 3:
28 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtracting 0 from 10 leaves us with 10.
Append the next digit (0) from the dividend to 10 and continue with: 100 / 28

Step 4:
If we divide 100 by 28, we get 3 and a remainder of 16.
Write down 3 as next digit of the result. 
Result so far: 103.0
If we subtract 84 from 100, we get 16.
Grab the next digit (0) from the dividend, add it to 16, then carry on: 160 / 28

Step 5:
160 divided by 28 is 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 1035.0
Subtracting 140 from 160 leaves us with 20.
Append the next digit (3) from the dividend to 20 and continue with: 203 / 28

Let's proceed to step 6:
When dividing 203 by 28, we get 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 10357.0
Deduct 196 from 203 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
If we divide 70 by 28, we get 2 and a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 10357.2
Deduct 56 from 70 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 8:
140 divided by 28 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 10357.25
If we take 140 away from 140, 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.

Moving on to step 9:
28 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10357.25
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 10:
28 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 10357.25
Subtract 0 from 0 to 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 quotient of the division is 10357.25, and the remainder is 0.0.