399129 divided by 79 
Our goal is to divide 399129 by 79.

Going ahead to step 1:
79 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 79

Moving on to step 2:
The number 79 fits into 39 0 times, leaving a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 79

Going ahead to step 3:
79 goes into 399 5 times with a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 395 from 399 to get 4.
Include the next digit (1) from the dividend after 4, then repeat: 41 / 79

On to step 4:
When dividing 41 by 79, we get 0 with a remainder of 41.
Put 0 as the next digit of the answer. 
Result so far: 50.0
Deduct 0 from 41 and we're left with 41.
Include the next digit (2) from the dividend after 41, then repeat: 412 / 79

Going ahead to step 5:
79 can be fit into 412 5 times, resulting in a remainder of 17.
The next digit of our result is 5. 
Result so far: 505.0
If we subtract 395 from 412, we get 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 79

Moving on to step 6:
79 can be fit into 179 2 times, resulting in a remainder of 21.
The next digit of our result is 2. 
Result so far: 5052.0
Deduct 158 from 179 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 7:
210 divided by 79 is 2 with a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 5052.2
If we take 158 away from 210, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 8:
520 divided by 79 is 6 with a remainder of 46.
Put 6 as the next digit of the answer. 
Result so far: 5052.26
Subtracting 474 from 520 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 9:
When dividing 460 by 79, we get 5 with a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 5052.265
Subtracting 395 from 460 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.

Let's proceed to step 10:
650 divided by 79 is 8 with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 5052.2658
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.

Let's proceed to step 11:
79 can be fit into 180 2 times, resulting in a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 5052.26582
Deduct 158 from 180 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 12:
If we divide 220 by 79, we get 2 and a remainder of 62.
The number 2 becomes the next digit in our result. 
Result so far: 5052.265822
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.

Our division results in 5052.265822 with a remaining 6.2e-06.