423839 ÷ 13 
We want to figure out the number of times 423839 can be divided by 13.

Moving on to step 1:
If we divide 4 by 13, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 13

Going ahead to step 2:
13 goes into 42 3 times with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 39 from 42 and we're left with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 13

On to step 3:
When dividing 33 by 13, we get 2 with a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 32.0
The remainder is 7 after subtracting 26 from 33.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 13

Advancing to step 4:
13 goes into 78 6 times with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 326.0
The remainder is 0 after subtracting 78 from 78.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 13

Step 5:
13 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 3260.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 13

Let's proceed to step 6:
13 goes into 39 3 times with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 32603.0
Deduct 39 from 39 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 7:
The number 13 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 32603.0
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.

Let's proceed to step 8:
The number 13 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 32603.0
Subtract 0 from 0 to 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.

Our division results in 32603.0 with a remaining 0.0.