We're dividing 3983984 by 318 
Our goal is to divide 3983984 by 318.

Advancing to step 1:
The number 318 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 318

Advancing to step 2:
When dividing 39 by 318, we get 0 with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Take the next digit (8) from the dividend and append it to 39, then repeat: 398 / 318

Advancing to step 3:
398 divided by 318 is 1 with a remainder of 80.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 318 away from 398, we end up with 80.
Grab the next digit (3) from the dividend, add it to 80, then carry on: 803 / 318

Let's proceed to step 4:
If we divide 803 by 318, we get 2 and a remainder of 167.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we take 636 away from 803, we end up with 167.
Append the next digit (9) from the dividend to 167 and continue with: 1679 / 318

Advancing to step 5:
318 goes into 1679 5 times with a remainder of 89.
Record the quotient 5 as the next digit in the result. 
Result so far: 125.0
Subtract 1590 from 1679 to get 89.
Include the next digit (8) from the dividend after 89, then repeat: 898 / 318

On to step 6:
When dividing 898 by 318, we get 2 with a remainder of 262.
Put 2 as the next digit of the answer. 
Result so far: 1252.0
If we take 636 away from 898, we end up with 262.
Grab the next digit (4) from the dividend, add it to 262, then carry on: 2624 / 318

On to step 7:
318 can be fit into 2624 8 times, resulting in a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 12528.0
Deduct 2544 from 2624 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 8:
318 goes into 800 2 times with a remainder of 164.
The next digit of our result is 2. 
Result so far: 12528.2
The remainder is 164 after subtracting 636 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

On to step 9:
318 can be fit into 1640 5 times, resulting in a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 12528.25
If we take 1590 away from 1640, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 10:
318 can be fit into 500 1 times, resulting in a remainder of 182.
The next digit of our result is 1. 
Result so far: 12528.251
If we subtract 318 from 500, we get 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Going ahead to step 11:
The number 318 fits into 1820 5 times, leaving a remainder of 230.
Put 5 as the next digit of the answer. 
Result so far: 12528.2515
Deduct 1590 from 1820 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 12:
318 can be fit into 2300 7 times, resulting in a remainder of 74.
Record the quotient 7 as the next digit in the result. 
Result so far: 12528.25157
Deduct 2226 from 2300 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 13:
318 can be fit into 740 2 times, resulting in a remainder of 104.
Write down 2 as next digit of the result. 
Result so far: 12528.251572
Subtract 636 from 740 to get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

On to step 14:
The number 318 fits into 1040 3 times, leaving a remainder of 86.
Write down 3 as next digit of the result. 
Result so far: 12528.2515723
If we subtract 954 from 1040, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Step 15:
When dividing 860 by 318, we get 2 with a remainder of 224.
Write down 2 as next digit of the result. 
Result so far: 12528.25157232
Deduct 636 from 860 and we're left with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

After the division, we end up with 12528.25157232 and a remainder of 2.24e-07.