We divide 391905 by 79
Let's see how many times 79 fits into 391905.

Step 1:
3 divided by 79 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 79

Moving on to step 2:
39 divided by 79 is 0 with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Append the next digit (1) from the dividend to 39 and continue with: 391 / 79

Step 3:
79 can be fit into 391 4 times, resulting in a remainder of 75.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 316 from 391, we get 75.
Grab the next digit (9) from the dividend, add it to 75, then carry on: 759 / 79

Let's proceed to step 4:
The number 79 fits into 759 9 times, leaving a remainder of 48.
The next digit of our result is 9. 
Result so far: 49.0
If we subtract 711 from 759, we get 48.
Grab the next digit (0) from the dividend, add it to 48, then carry on: 480 / 79

Moving on to step 5:
When dividing 480 by 79, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 496.0
If we subtract 474 from 480, we get 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 79

Step 6:
79 can be fit into 65 0 times, resulting in a remainder of 65.
Record the quotient 0 as the next digit in the result. 
Result so far: 4960.0
Subtracting 0 from 65 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 7:
If we divide 650 by 79, we get 8 and a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 4960.8
Deduct 632 from 650 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 8:
If we divide 180 by 79, we get 2 and a remainder of 22.
Put 2 as the next digit of the answer. 
Result so far: 4960.82
The remainder is 22 after subtracting 158 from 180.
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 9:
When dividing 220 by 79, we get 2 with a remainder of 62.
The next digit of our result is 2. 
Result so far: 4960.822
The remainder is 62 after subtracting 158 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

The final outcome is 4960.822, with a leftover of 0.0062.