637400 divided by 28 
The aim is to understand the frequency of 28 in 637400.

Moving on to step 1:
28 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 28

Let's proceed to step 2:
When dividing 63 by 28, we get 2 with a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 56 from 63 leaves us with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 28

Moving on to step 3:
28 can be fit into 77 2 times, resulting in a remainder of 21.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
If we subtract 56 from 77, we get 21.
Include the next digit (4) from the dividend after 21, then repeat: 214 / 28

Moving on to step 4:
The number 28 fits into 214 7 times, leaving a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 227.0
Subtracting 196 from 214 leaves us with 18.
Append the next digit (0) from the dividend to 18 and continue with: 180 / 28

Let's proceed to step 5:
When dividing 180 by 28, we get 6 with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 2276.0
Subtracting 168 from 180 leaves us with 12.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 28

On to step 6:
28 can be fit into 120 4 times, resulting in a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 22764.0
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.

Advancing to step 7:
80 divided by 28 is 2 with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 22764.2
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 8:
28 goes into 240 8 times with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 22764.28
Subtracting 224 from 240 leaves us 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.

Advancing to step 9:
When dividing 160 by 28, we get 5 with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 22764.285
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.

Moving on to step 10:
28 goes into 200 7 times with a remainder of 4.
The next digit of our result is 7. 
Result so far: 22764.2857
If we take 196 away from 200, we end up 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.

Moving on to step 11:
The number 28 fits into 40 1 times, leaving a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 22764.28571
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.

Let's proceed to step 12:
120 divided by 28 is 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 22764.285714
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 13:
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: 22764.2857142
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.

Advancing to step 14:
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: 22764.28571428
Deduct 224 from 240 and we're left 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.

After the division, we end up with 22764.28571428 and a remainder of 1.6e-08.