We look at the division of 868389 by 79 
Let's see how many times 79 fits into 868389.

On to step 1:
8 divided by 79 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 79

Going ahead to step 2:
If we divide 86 by 79, we get 1 and a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 79 from 86, we get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 79

Going ahead to step 3:
When dividing 78 by 79, we get 0 with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 78 to get 78.
Bring next digit (3) of the dividend behind the 78 and repeat the process: 783 / 79

On to step 4:
79 goes into 783 9 times with a remainder of 72.
Record the quotient 9 as the next digit in the result. 
Result so far: 109.0
Subtract 711 from 783 to get 72.
Fetch the next digit (8) from the dividend, attach it to 72 and continue: 728 / 79

Step 5:
If we divide 728 by 79, we get 9 and a remainder of 17.
Record the quotient 9 as the next digit in the result. 
Result so far: 1099.0
If we subtract 711 from 728, we get 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 79

Step 6:
The number 79 fits into 179 2 times, leaving a remainder of 21.
Use 2 as the next digit of our solution. 
Result so far: 10992.0
If we take 158 away from 179, we end up 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:
79 can be fit into 210 2 times, resulting in a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 10992.2
The remainder is 52 after subtracting 158 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 8:
520 divided by 79 is 6 with a remainder of 46.
Record the quotient 6 as the next digit in the result. 
Result so far: 10992.26
If we subtract 474 from 520, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 9:
The number 79 fits into 460 5 times, leaving a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 10992.265
If we subtract 395 from 460, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 10:
When dividing 650 by 79, we get 8 with a remainder of 18.
The next digit of our result is 8. 
Result so far: 10992.2658
If we take 632 away from 650, we end up 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.

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: 10992.26582
If we take 158 away from 180, we end up 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.

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: 10992.265822
If we take 158 away from 220, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

After the division, we end up with 10992.265822 and a remainder of 6.2e-06.