We're dividing 858589 by 99 
Let's see how many times 99 fits into 858589.

Advancing to step 1:
99 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 99

Advancing to step 2:
If we divide 85 by 99, we get 0 and a remainder of 85.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 85 after subtracting 0 from 85.
Bring next digit (8) of the dividend behind the 85 and repeat the process: 858 / 99

Going ahead to step 3:
When dividing 858 by 99, we get 8 with a remainder of 66.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we take 792 away from 858, we end up with 66.
Bring next digit (5) of the dividend behind the 66 and repeat the process: 665 / 99

Step 4:
99 goes into 665 6 times with a remainder of 71.
Write down 6 as next digit of the result. 
Result so far: 86.0
If we subtract 594 from 665, we get 71.
Include the next digit (8) from the dividend after 71, then repeat: 718 / 99

Going ahead to step 5:
If we divide 718 by 99, we get 7 and a remainder of 25.
Use 7 as the next digit of our solution. 
Result so far: 867.0
If we take 693 away from 718, we end up with 25.
Fetch the next digit (9) from the dividend, attach it to 25 and continue: 259 / 99

Advancing to step 6:
When dividing 259 by 99, we get 2 with a remainder of 61.
The next digit of our result is 2. 
Result so far: 8672.0
If we subtract 198 from 259, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 7:
99 goes into 610 6 times with a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 8672.6
Subtract 594 from 610 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 8:
If we divide 160 by 99, we get 1 and a remainder of 61.
The number 1 becomes the next digit in our result. 
Result so far: 8672.61
Subtract 99 from 160 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 9:
The number 99 fits into 610 6 times, leaving a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 8672.616
Subtract 594 from 610 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 10:
160 divided by 99 is 1 with a remainder of 61.
Use 1 as the next digit of our solution. 
Result so far: 8672.6161
The remainder is 61 after subtracting 99 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 11:
When dividing 610 by 99, we get 6 with a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 8672.61616
The remainder is 16 after subtracting 594 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 12:
The number 99 fits into 160 1 times, leaving a remainder of 61.
Use 1 as the next digit of our solution. 
Result so far: 8672.616161
If we subtract 99 from 160, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 13:
When dividing 610 by 99, we get 6 with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 8672.6161616
Deduct 594 from 610 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 14:
99 can be fit into 160 1 times, resulting in a remainder of 61.
Use 1 as the next digit of our solution. 
Result so far: 8672.61616161
If we take 99 away from 160, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

The final outcome is 8672.61616161, with a leftover of 6.1e-08.