We're dividing 778410 by 39 
We want to divide 778410 by 39.

On to step 1:
The number 39 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 39

Going ahead to step 2:
39 goes into 77 1 times with a remainder of 38.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 39 from 77 leaves us with 38.
Fetch the next digit (8) from the dividend, attach it to 38 and continue: 388 / 39

Going ahead to step 3:
If we divide 388 by 39, we get 9 and a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we subtract 351 from 388, we get 37.
Fetch the next digit (4) from the dividend, attach it to 37 and continue: 374 / 39

On to step 4:
If we divide 374 by 39, we get 9 and a remainder of 23.
Record the quotient 9 as the next digit in the result. 
Result so far: 199.0
If we take 351 away from 374, we end up with 23.
Append the next digit (1) from the dividend to 23 and continue with: 231 / 39

Let's proceed to step 5:
231 divided by 39 is 5 with a remainder of 36.
Put 5 as the next digit of the answer. 
Result so far: 1995.0
Subtract 195 from 231 to get 36.
Fetch the next digit (0) from the dividend, attach it to 36 and continue: 360 / 39

Step 6:
360 divided by 39 is 9 with a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 19959.0
If we subtract 351 from 360, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
39 can be fit into 90 2 times, resulting in a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 19959.2
Subtracting 78 from 90 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 8:
The number 39 fits into 120 3 times, leaving a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 19959.23
If we take 117 away from 120, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 9:
If we divide 30 by 39, we get 0 and a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 19959.23
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
The number 39 fits into 300 7 times, leaving a remainder of 27.
The next digit of our result is 7. 
Result so far: 19959.2307
If we take 273 away from 300, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 11:
39 goes into 270 6 times with a remainder of 36.
Record the quotient 6 as the next digit in the result. 
Result so far: 19959.23076
Subtract 234 from 270 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 12:
If we divide 360 by 39, we get 9 and a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 19959.230769
Deduct 351 from 360 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 13:
When dividing 90 by 39, we get 2 with a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 19959.2307692
Subtract 78 from 90 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 14:
39 can be fit into 120 3 times, resulting in a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 19959.23076923
Deduct 117 from 120 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

After the division, we end up with 19959.23076923 and a remainder of 3e-09.