398432 ÷ 256 
The aim is to understand the frequency of 256 in 398432.

Let's proceed to step 1:
The number 256 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 256

Let's proceed to step 2:
256 goes into 39 0 times with a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Bring next digit (8) of the dividend behind the 39 and repeat the process: 398 / 256

Let's proceed to step 3:
256 goes into 398 1 times with a remainder of 142.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 256 from 398 to get 142.
Bring next digit (4) of the dividend behind the 142 and repeat the process: 1424 / 256

Advancing to step 4:
The number 256 fits into 1424 5 times, leaving a remainder of 144.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 1280 from 1424 and we're left with 144.
Fetch the next digit (3) from the dividend, attach it to 144 and continue: 1443 / 256

On to step 5:
When dividing 1443 by 256, we get 5 with a remainder of 163.
The next digit of our result is 5. 
Result so far: 155.0
If we take 1280 away from 1443, we end up with 163.
Include the next digit (2) from the dividend after 163, then repeat: 1632 / 256

Moving on to step 6:
When dividing 1632 by 256, we get 6 with a remainder of 96.
Record the quotient 6 as the next digit in the result. 
Result so far: 1556.0
The remainder is 96 after subtracting 1536 from 1632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 7:
When dividing 960 by 256, we get 3 with a remainder of 192.
Record the quotient 3 as the next digit in the result. 
Result so far: 1556.3
Subtract 768 from 960 to get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Going ahead to step 8:
1920 divided by 256 is 7 with a remainder of 128.
Put 7 as the next digit of the answer. 
Result so far: 1556.37
If we take 1792 away from 1920, we end up with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Step 9:
When dividing 1280 by 256, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 1556.375
If we subtract 1280 from 1280, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
256 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1556.375
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
256 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1556.375
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 1556.375, and the remainder is 0.0.