We look at the division of 391264 by 39 
We want to figure out the number of times 391264 can be divided by 39.

Moving on to step 1:
3 divided by 39 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 39

Advancing to step 2:
When dividing 39 by 39, we get 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 0 after subtracting 39 from 39.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 39

On to step 3:
The number 39 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 10.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 39

Going ahead to step 4:
39 goes into 12 0 times with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
Subtracting 0 from 12 leaves us with 12.
Grab the next digit (6) from the dividend, add it to 12, then carry on: 126 / 39

Going ahead to step 5:
39 can be fit into 126 3 times, resulting in a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 1003.0
Subtracting 117 from 126 leaves us with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 39

On to step 6:
94 divided by 39 is 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 10032.0
The remainder is 16 after subtracting 78 from 94.
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 7:
The number 39 fits into 160 4 times, leaving a remainder of 4.
The next digit of our result is 4. 
Result so far: 10032.4
Subtracting 156 from 160 leaves us with 4.
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 8:
39 goes into 40 1 times with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 10032.41
Deduct 39 from 40 and we're left 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.

Advancing to step 9:
If we divide 10 by 39, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 10032.41
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
When dividing 100 by 39, we get 2 with a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 10032.4102
If we subtract 78 from 100, we 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:
When dividing 220 by 39, we get 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 10032.41025
If we take 195 away from 220, we end up 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.

Step 12:
250 divided by 39 is 6 with a remainder of 16.
The next digit of our result is 6. 
Result so far: 10032.410256
The remainder is 16 after subtracting 234 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
39 goes into 160 4 times with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 10032.4102564
Subtract 156 from 160 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 14:
39 can be fit into 40 1 times, resulting in a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 10032.41025641
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.

After the division, we end up with 10032.41025641 and a remainder of 1e-09.