Let's divide 306388 by 4
The aim is to understand the frequency of 4 in 306388.

On to step 1:
When dividing 3 by 4, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 4

Let's proceed to step 2:
If we divide 30 by 4, we get 7 and a remainder of 2.
The next digit of our result is 7. 
Result so far: 7.0
Deduct 28 from 30 and we're left with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 4

Going ahead to step 3:
26 divided by 4 is 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 76.0
If we subtract 24 from 26, we get 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 4

Let's proceed to step 4:
The number 4 fits into 23 5 times, leaving a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 765.0
Deduct 20 from 23 and we're left with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 4

Step 5:
4 can be fit into 38 9 times, resulting in a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 7659.0
The remainder is 2 after subtracting 36 from 38.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 4

Moving on to step 6:
4 goes into 28 7 times with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 76597.0
The remainder is 0 after subtracting 28 from 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
0 divided by 4 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 76597.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
4 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 76597.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 76597.0 with a balance of 0.0.