We look at the division of 859398 by 86 
Let's see how many times 86 fits into 859398.

Going ahead to step 1:
86 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 86

Let's proceed to step 2:
86 can be fit into 85 0 times, resulting in a remainder of 85.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Bring next digit (9) of the dividend behind the 85 and repeat the process: 859 / 86

Step 3:
When dividing 859 by 86, we get 9 with a remainder of 85.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 774 away from 859, we end up with 85.
Grab the next digit (3) from the dividend, add it to 85, then carry on: 853 / 86

On to step 4:
If we divide 853 by 86, we get 9 and a remainder of 79.
The next digit of our result is 9. 
Result so far: 99.0
If we subtract 774 from 853, we get 79.
Include the next digit (9) from the dividend after 79, then repeat: 799 / 86

Advancing to step 5:
If we divide 799 by 86, we get 9 and a remainder of 25.
Write down 9 as next digit of the result. 
Result so far: 999.0
If we subtract 774 from 799, we get 25.
Fetch the next digit (8) from the dividend, attach it to 25 and continue: 258 / 86

Step 6:
86 can be fit into 258 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 9993.0
The remainder is 0 after subtracting 258 from 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
86 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 9993.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
0 divided by 86 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 9993.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 9993.0 and a remainder of 0.0.