We're dividing 339406 by 4 
The aim is to understand the frequency of 4 in 339406.

Advancing to step 1:
3 divided by 4 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 4

Let's proceed to step 2:
If we divide 33 by 4, we get 8 and a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 32 from 33 to get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 4

Moving on to step 3:
The number 4 fits into 19 4 times, leaving a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 84.0
The remainder is 3 after subtracting 16 from 19.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 4

Moving on to step 4:
4 can be fit into 34 8 times, resulting in a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 848.0
Subtracting 32 from 34 leaves us with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 4

Going ahead to step 5:
When dividing 20 by 4, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 8485.0
Subtracting 20 from 20 leaves us with 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 4

On to step 6:
When dividing 6 by 4, we get 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 84851.0
Subtract 4 from 6 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
4 can be fit into 20 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 84851.5
If we subtract 20 from 20, 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 8:
4 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 84851.5
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.

Moving on to step 9:
4 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 84851.5
Deduct 0 from 0 and we're left 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.

The final outcome is 84851.5, with a leftover of 0.0.