We divide 813434 by 28
The aim is to understand the frequency of 28 in 813434.

Going ahead to step 1:
8 divided by 28 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 28

Advancing to step 2:
81 divided by 28 is 2 with a remainder of 25.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 56 from 81, we get 25.
Append the next digit (3) from the dividend to 25 and continue with: 253 / 28

Let's proceed to step 3:
28 goes into 253 9 times with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 29.0
Subtracting 252 from 253 leaves us with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 28

Advancing to step 4:
28 goes into 14 0 times with a remainder of 14.
The next digit of our result is 0. 
Result so far: 290.0
If we subtract 0 from 14, we get 14.
Fetch the next digit (3) from the dividend, attach it to 14 and continue: 143 / 28

Step 5:
28 goes into 143 5 times with a remainder of 3.
The next digit of our result is 5. 
Result so far: 2905.0
Subtracting 140 from 143 leaves us with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 28

Going ahead to step 6:
When dividing 34 by 28, we get 1 with a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 29051.0
The remainder is 6 after subtracting 28 from 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
If we divide 60 by 28, we get 2 and a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 29051.2
Deduct 56 from 60 and we're left 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 8:
28 can be fit into 40 1 times, resulting in a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 29051.21
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.

Let's proceed to step 9:
120 divided by 28 is 4 with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 29051.214
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.

Moving on to step 10:
The number 28 fits into 80 2 times, leaving a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 29051.2142
If we take 56 away from 80, we end up 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 11:
240 divided by 28 is 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 29051.21428
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.

Going ahead to step 12:
If we divide 160 by 28, we get 5 and a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 29051.214285
The remainder is 20 after subtracting 140 from 160.
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:
28 goes into 200 7 times with a remainder of 4.
The next digit of our result is 7. 
Result so far: 29051.2142857
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:
28 goes into 40 1 times with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 29051.21428571
The remainder is 12 after subtracting 28 from 40.
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 29051.21428571 with a remainder of 1.2e-08.