We look at the division of 428392 by 39 
We're looking to find how many times 39 goes into 428392.

Moving on to step 1:
When dividing 4 by 39, we get 0 with a remainder of 4.
The next digit of our result is 0. 
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 / 39

Step 2:
The number 39 fits into 42 1 times, leaving a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 3 after subtracting 39 from 42.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 39

On to step 3:
If we divide 38 by 39, we get 0 and a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtract 0 from 38 to get 38.
Fetch the next digit (3) from the dividend, attach it to 38 and continue: 383 / 39

Moving on to step 4:
383 divided by 39 is 9 with a remainder of 32.
Use 9 as the next digit of our solution. 
Result so far: 109.0
Deduct 351 from 383 and we're left with 32.
Grab the next digit (9) from the dividend, add it to 32, then carry on: 329 / 39

Step 5:
39 can be fit into 329 8 times, resulting in a remainder of 17.
Put 8 as the next digit of the answer. 
Result so far: 1098.0
If we subtract 312 from 329, we get 17.
Take the next digit (2) from the dividend and append it to 17, then repeat: 172 / 39

Let's proceed to step 6:
39 can be fit into 172 4 times, resulting in a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 10984.0
If we subtract 156 from 172, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 7:
39 can be fit into 160 4 times, resulting in a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 10984.4
The remainder is 4 after subtracting 156 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
40 divided by 39 is 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 10984.41
The remainder is 1 after subtracting 39 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 9:
39 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 10984.41
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 10:
100 divided by 39 is 2 with a remainder of 22.
The next digit of our result is 2. 
Result so far: 10984.4102
Subtract 78 from 100 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 11:
The number 39 fits into 220 5 times, leaving a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 10984.41025
Subtracting 195 from 220 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 12:
If we divide 250 by 39, we get 6 and a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 10984.410256
If we subtract 234 from 250, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 13:
When dividing 160 by 39, we get 4 with a remainder of 4.
The next digit of our result is 4. 
Result so far: 10984.4102564
The remainder is 4 after subtracting 156 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 14:
40 divided by 39 is 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 10984.41025641
If we take 39 away from 40, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 10984.41025641 with a remaining 1e-09.