We're dividing 391789 by 79 
Let's see how many times 79 fits into 391789.

Advancing to step 1:
79 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 79

Let's proceed to step 2:
If we divide 39 by 79, we get 0 and a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Include the next digit (1) from the dividend after 39, then repeat: 391 / 79

Moving on to step 3:
391 divided by 79 is 4 with a remainder of 75.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 316 away from 391, we end up with 75.
Grab the next digit (7) from the dividend, add it to 75, then carry on: 757 / 79

On to step 4:
The number 79 fits into 757 9 times, leaving a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 49.0
If we subtract 711 from 757, we get 46.
Include the next digit (8) from the dividend after 46, then repeat: 468 / 79

Going ahead to step 5:
The number 79 fits into 468 5 times, leaving a remainder of 73.
The next digit of our result is 5. 
Result so far: 495.0
If we subtract 395 from 468, we get 73.
Bring next digit (9) of the dividend behind the 73 and repeat the process: 739 / 79

Let's proceed to step 6:
The number 79 fits into 739 9 times, leaving a remainder of 28.
The next digit of our result is 9. 
Result so far: 4959.0
Deduct 711 from 739 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 7:
280 divided by 79 is 3 with a remainder of 43.
Put 3 as the next digit of the answer. 
Result so far: 4959.3
Subtract 237 from 280 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 8:
The number 79 fits into 430 5 times, leaving a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 4959.35
The remainder is 35 after subtracting 395 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 9:
79 can be fit into 350 4 times, resulting in a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 4959.354
If we take 316 away from 350, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 10:
79 goes into 340 4 times with a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 4959.3544
Deduct 316 from 340 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 4959.3544 and a remainder of 0.00024.