We're dividing 439858 by 4 
We're looking to find how many times 4 goes into 439858.

On to step 1:
4 goes into 4 1 times with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 4 from 4 leaves us with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 4

Step 2:
The number 4 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 4

Moving on to step 3:
If we divide 39 by 4, we get 9 and a remainder of 3.
The next digit of our result is 9. 
Result so far: 109.0
If we take 36 away from 39, we end up with 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 4

Advancing to step 4:
4 can be fit into 38 9 times, resulting in a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 1099.0
Subtracting 36 from 38 leaves us with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 4

On to step 5:
25 divided by 4 is 6 with a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 10996.0
Subtracting 24 from 25 leaves us with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 4

Moving on to step 6:
18 divided by 4 is 4 with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 109964.0
The remainder is 2 after subtracting 16 from 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
The number 4 fits into 20 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 109964.5
Subtracting 20 from 20 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.

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: 109964.5
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.

Advancing to step 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 109964.5
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 109964.5, with a leftover of 0.0.