We're dividing 407493 by 28 
The aim is to understand the frequency of 28 in 407493.

On to step 1:
The number 28 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 28

On to step 2:
28 goes into 40 1 times with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 28 away from 40, we end up with 12.
Fetch the next digit (7) from the dividend, attach it to 12 and continue: 127 / 28

Going ahead to step 3:
If we divide 127 by 28, we get 4 and a remainder of 15.
The next digit of our result is 4. 
Result so far: 14.0
The remainder is 15 after subtracting 112 from 127.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 28

Going ahead to step 4:
28 can be fit into 154 5 times, resulting in a remainder of 14.
Put 5 as the next digit of the answer. 
Result so far: 145.0
The remainder is 14 after subtracting 140 from 154.
Append the next digit (9) from the dividend to 14 and continue with: 149 / 28

Moving on to step 5:
When dividing 149 by 28, we get 5 with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 1455.0
If we take 140 away from 149, we end up with 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 28

Advancing to step 6:
The number 28 fits into 93 3 times, leaving a remainder of 9.
Record the quotient 3 as the next digit in the result. 
Result so far: 14553.0
If we subtract 84 from 93, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
The number 28 fits into 90 3 times, leaving a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 14553.3
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 8:
28 can be fit into 60 2 times, resulting in a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 14553.32
Subtracting 56 from 60 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.

Going ahead to step 9:
40 divided by 28 is 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 14553.321
Subtracting 28 from 40 leaves us with 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 10:
28 goes into 120 4 times with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 14553.3214
Subtract 112 from 120 to get 8.
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 11:
The number 28 fits into 80 2 times, leaving a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 14553.32142
The remainder is 24 after subtracting 56 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 12:
The number 28 fits into 240 8 times, leaving a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 14553.321428
Subtract 224 from 240 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
28 goes into 160 5 times with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 14553.3214285
If we subtract 140 from 160, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 14:
200 divided by 28 is 7 with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 14553.32142857
If we subtract 196 from 200, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 14553.32142857 with a remainder of 4e-09.