Let's divide 9306911 by 428
The aim is to understand the frequency of 428 in 9306911.

Let's proceed to step 1:
If we divide 9 by 428, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 428

Going ahead to step 2:
When dividing 93 by 428, we get 0 with a remainder of 93.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 93 to get 93.
Take the next digit (0) from the dividend and append it to 93, then repeat: 930 / 428

Going ahead to step 3:
428 can be fit into 930 2 times, resulting in a remainder of 74.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 856 from 930 leaves us with 74.
Take the next digit (6) from the dividend and append it to 74, then repeat: 746 / 428

Let's proceed to step 4:
If we divide 746 by 428, we get 1 and a remainder of 318.
Use 1 as the next digit of our solution. 
Result so far: 21.0
The remainder is 318 after subtracting 428 from 746.
Include the next digit (9) from the dividend after 318, then repeat: 3189 / 428

Step 5:
The number 428 fits into 3189 7 times, leaving a remainder of 193.
Write down 7 as next digit of the result. 
Result so far: 217.0
Deduct 2996 from 3189 and we're left with 193.
Include the next digit (1) from the dividend after 193, then repeat: 1931 / 428

On to step 6:
If we divide 1931 by 428, we get 4 and a remainder of 219.
The next digit of our result is 4. 
Result so far: 2174.0
If we subtract 1712 from 1931, we get 219.
Bring next digit (1) of the dividend behind the 219 and repeat the process: 2191 / 428

Step 7:
When dividing 2191 by 428, we get 5 with a remainder of 51.
The next digit of our result is 5. 
Result so far: 21745.0
Deduct 2140 from 2191 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 8:
510 divided by 428 is 1 with a remainder of 82.
Put 1 as the next digit of the answer. 
Result so far: 21745.1
The remainder is 82 after subtracting 428 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

On to step 9:
428 goes into 820 1 times with a remainder of 392.
Write down 1 as next digit of the result. 
Result so far: 21745.11
If we take 428 away from 820, we end up with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

The final result is 21745.11 with a remainder of 0.392.