We're dividing 439866 by 4 
Our goal is to divide 439866 by 4.

Moving on to step 1:
4 divided by 4 is 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 4 from 4, we get 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 4

Going ahead to step 2:
4 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 4

Moving on to step 3:
When dividing 39 by 4, we get 9 with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 109.0
Subtracting 36 from 39 leaves us with 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 4

Going ahead to step 4:
When dividing 38 by 4, we get 9 with a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 1099.0
Subtract 36 from 38 to get 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 4

Advancing to step 5:
If we divide 26 by 4, we get 6 and a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 10996.0
Subtracting 24 from 26 leaves us with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 4

Let's proceed to step 6:
When dividing 26 by 4, we get 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 109966.0
If we take 24 away from 26, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
The number 4 fits into 20 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 109966.5
The remainder is 0 after subtracting 20 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 4, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 109966.5
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.

Going ahead to step 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 109966.5
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 result is 109966.5 with a remainder of 0.0.