We're dividing 903738 by 28 
The aim is to understand the frequency of 28 in 903738.

Step 1:
The number 28 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 28

Going ahead to step 2:
When dividing 90 by 28, we get 3 with a remainder of 6.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 6 after subtracting 84 from 90.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 28

Step 3:
If we divide 63 by 28, we get 2 and a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 32.0
Deduct 56 from 63 and we're left with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 28

Going ahead to step 4:
77 divided by 28 is 2 with a remainder of 21.
Record the quotient 2 as the next digit in the result. 
Result so far: 322.0
If we take 56 away from 77, we end up with 21.
Grab the next digit (3) from the dividend, add it to 21, then carry on: 213 / 28

Going ahead to step 5:
The number 28 fits into 213 7 times, leaving a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 3227.0
Subtract 196 from 213 to get 17.
Grab the next digit (8) from the dividend, add it to 17, then carry on: 178 / 28

Going ahead to step 6:
If we divide 178 by 28, we get 6 and a remainder of 10.
The next digit of our result is 6. 
Result so far: 32276.0
If we take 168 away from 178, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
28 goes into 100 3 times with a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 32276.3
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 8:
160 divided by 28 is 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 32276.35
Deduct 140 from 160 and we're left 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.

Advancing to step 9:
200 divided by 28 is 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 32276.357
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.

Going ahead to step 10:
28 goes into 40 1 times with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 32276.3571
Deduct 28 from 40 and we're left 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.

Step 11:
28 can be fit into 120 4 times, resulting in a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 32276.35714
Deduct 112 from 120 and we're left with 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 12:
If we divide 80 by 28, we get 2 and a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 32276.357142
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.

Step 13:
28 goes into 240 8 times with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 32276.3571428
The remainder is 16 after subtracting 224 from 240.
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 14:
28 can be fit into 160 5 times, resulting in a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 32276.35714285
Subtracting 140 from 160 leaves us 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.

The final outcome is 32276.35714285, with a leftover of 2e-08.