15339075 ÷ 780 
Our goal is to divide 15339075 by 780.

Moving on to step 1:
If we divide 1 by 780, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 780

On to step 2:
780 can be fit into 15 0 times, resulting in a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 780

Going ahead to step 3:
If we divide 153 by 780, we get 0 and a remainder of 153.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 153, we get 153.
Fetch the next digit (3) from the dividend, attach it to 153 and continue: 1533 / 780

Let's proceed to step 4:
The number 780 fits into 1533 1 times, leaving a remainder of 753.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 780 from 1533 and we're left with 753.
Append the next digit (9) from the dividend to 753 and continue with: 7539 / 780

Advancing to step 5:
The number 780 fits into 7539 9 times, leaving a remainder of 519.
The next digit of our result is 9. 
Result so far: 19.0
If we take 7020 away from 7539, we end up with 519.
Append the next digit (0) from the dividend to 519 and continue with: 5190 / 780

Going ahead to step 6:
5190 divided by 780 is 6 with a remainder of 510.
The next digit of our result is 6. 
Result so far: 196.0
Subtracting 4680 from 5190 leaves us with 510.
Grab the next digit (7) from the dividend, add it to 510, then carry on: 5107 / 780

Advancing to step 7:
The number 780 fits into 5107 6 times, leaving a remainder of 427.
Use 6 as the next digit of our solution. 
Result so far: 1966.0
Deduct 4680 from 5107 and we're left with 427.
Append the next digit (5) from the dividend to 427 and continue with: 4275 / 780

On to step 8:
780 can be fit into 4275 5 times, resulting in a remainder of 375.
Put 5 as the next digit of the answer. 
Result so far: 19665.0
The remainder is 375 after subtracting 3900 from 4275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Moving on to step 9:
The number 780 fits into 3750 4 times, leaving a remainder of 630.
Record the quotient 4 as the next digit in the result. 
Result so far: 19665.4
Deduct 3120 from 3750 and we're left with 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Step 10:
780 goes into 6300 8 times with a remainder of 60.
Write down 8 as next digit of the result. 
Result so far: 19665.48
The remainder is 60 after subtracting 6240 from 6300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
600 divided by 780 is 0 with a remainder of 600.
Put 0 as the next digit of the answer. 
Result so far: 19665.48
Subtracting 0 from 600 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Advancing to step 12:
The number 780 fits into 6000 7 times, leaving a remainder of 540.
Record the quotient 7 as the next digit in the result. 
Result so far: 19665.4807
The remainder is 540 after subtracting 5460 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Going ahead to step 13:
If we divide 5400 by 780, we get 6 and a remainder of 720.
The next digit of our result is 6. 
Result so far: 19665.48076
Subtract 4680 from 5400 to get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Step 14:
780 can be fit into 7200 9 times, resulting in a remainder of 180.
Write down 9 as next digit of the result. 
Result so far: 19665.480769
Subtracting 7020 from 7200 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Going ahead to step 15:
The number 780 fits into 1800 2 times, leaving a remainder of 240.
Record the quotient 2 as the next digit in the result. 
Result so far: 19665.4807692
If we take 1560 away from 1800, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 16:
If we divide 2400 by 780, we get 3 and a remainder of 60.
The number 3 becomes the next digit in our result. 
Result so far: 19665.48076923
Deduct 2340 from 2400 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The quotient of the division is 19665.48076923, and the remainder is 6e-08.