We're dividing 338964 by 85 
Our goal is to divide 338964 by 85.

On to step 1:
If we divide 3 by 85, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 85

On to step 2:
The number 85 fits into 33 0 times, leaving a remainder of 33.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 33, we get 33.
Take the next digit (8) from the dividend and append it to 33, then repeat: 338 / 85

Advancing to step 3:
The number 85 fits into 338 3 times, leaving a remainder of 83.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 255 from 338, we get 83.
Grab the next digit (9) from the dividend, add it to 83, then carry on: 839 / 85

Let's proceed to step 4:
The number 85 fits into 839 9 times, leaving a remainder of 74.
The next digit of our result is 9. 
Result so far: 39.0
Subtracting 765 from 839 leaves us with 74.
Include the next digit (6) from the dividend after 74, then repeat: 746 / 85

On to step 5:
The number 85 fits into 746 8 times, leaving a remainder of 66.
Put 8 as the next digit of the answer. 
Result so far: 398.0
Deduct 680 from 746 and we're left with 66.
Bring next digit (4) of the dividend behind the 66 and repeat the process: 664 / 85

Let's proceed to step 6:
If we divide 664 by 85, we get 7 and a remainder of 69.
Use 7 as the next digit of our solution. 
Result so far: 3987.0
Subtract 595 from 664 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 7:
85 can be fit into 690 8 times, resulting in a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 3987.8
Subtracting 680 from 690 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
The number 85 fits into 100 1 times, leaving a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 3987.81
If we take 85 away from 100, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 9:
85 can be fit into 150 1 times, resulting in a remainder of 65.
The next digit of our result is 1. 
Result so far: 3987.811
The remainder is 65 after subtracting 85 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Our division results in 3987.811 with a remaining 0.0065.