We're dividing 779571 by 39 
We're looking to find how many times 39 goes into 779571.

Advancing to step 1:
39 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 39

Advancing to step 2:
77 divided by 39 is 1 with a remainder of 38.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 39 from 77 and we're left with 38.
Bring next digit (9) of the dividend behind the 38 and repeat the process: 389 / 39

Let's proceed to step 3:
If we divide 389 by 39, we get 9 and a remainder of 38.
The next digit of our result is 9. 
Result so far: 19.0
Subtracting 351 from 389 leaves us with 38.
Take the next digit (5) from the dividend and append it to 38, then repeat: 385 / 39

On to step 4:
If we divide 385 by 39, we get 9 and a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 199.0
Subtracting 351 from 385 leaves us with 34.
Take the next digit (7) from the dividend and append it to 34, then repeat: 347 / 39

Advancing to step 5:
If we divide 347 by 39, we get 8 and a remainder of 35.
Use 8 as the next digit of our solution. 
Result so far: 1998.0
Deduct 312 from 347 and we're left with 35.
Take the next digit (1) from the dividend and append it to 35, then repeat: 351 / 39

On to step 6:
If we divide 351 by 39, we get 9 and a remainder of 0.
The next digit of our result is 9. 
Result so far: 19989.0
If we take 351 away from 351, 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.

Going ahead to step 7:
The number 39 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 19989.0
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.

Going ahead to step 8:
39 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 19989.0
The remainder is 0 after subtracting 0 from 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 result is 19989.0 with a remainder of 0.0.