743819 ÷ 28 
The aim is to understand the frequency of 28 in 743819.

Step 1:
28 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 28

Let's proceed to step 2:
74 divided by 28 is 2 with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 56 from 74, we get 18.
Take the next digit (3) from the dividend and append it to 18, then repeat: 183 / 28

Moving on to step 3:
If we divide 183 by 28, we get 6 and a remainder of 15.
Write down 6 as next digit of the result. 
Result so far: 26.0
If we subtract 168 from 183, we get 15.
Include the next digit (8) from the dividend after 15, then repeat: 158 / 28

Moving on to step 4:
When dividing 158 by 28, we get 5 with a remainder of 18.
Record the quotient 5 as the next digit in the result. 
Result so far: 265.0
Subtracting 140 from 158 leaves us with 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 28

Step 5:
The number 28 fits into 181 6 times, leaving a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 2656.0
Subtract 168 from 181 to get 13.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 28

Moving on to step 6:
The number 28 fits into 139 4 times, leaving a remainder of 27.
Put 4 as the next digit of the answer. 
Result so far: 26564.0
The remainder is 27 after subtracting 112 from 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 7:
270 divided by 28 is 9 with a remainder of 18.
The next digit of our result is 9. 
Result so far: 26564.9
Subtract 252 from 270 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 8:
28 can be fit into 180 6 times, resulting in a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 26564.96
If we take 168 away from 180, we end up 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.

Going ahead to step 9:
28 can be fit into 120 4 times, resulting in a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 26564.964
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 10:
28 goes into 80 2 times with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 26564.9642
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.

Going ahead to step 11:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 26564.96428
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.

Step 12:
When dividing 160 by 28, we get 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 26564.964285
Subtract 140 from 160 to 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.

Advancing to step 13:
If we divide 200 by 28, we get 7 and a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 26564.9642857
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 14:
The number 28 fits into 40 1 times, leaving a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 26564.96428571
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.

The final result is 26564.96428571 with a remainder of 1.2e-08.