We look at the division of 99581 by 3 
We want to figure out the number of times 99581 can be divided by 3.

Going ahead to step 1:
If we divide 9 by 3, we get 3 and a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 9 from 9 leaves us with 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 3

Going ahead to step 2:
If we divide 9 by 3, we get 3 and a remainder of 0.
The next digit of our result is 3. 
Result so far: 33.0
Subtract 9 from 9 to get 0.
Fetch the next digit (5) from the dividend, attach it to 0 and continue: 5 / 3

Moving on to step 3:
The number 3 fits into 5 1 times, leaving a remainder of 2.
The next digit of our result is 1. 
Result so far: 331.0
Deduct 3 from 5 and we're left with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 3

Step 4:
When dividing 28 by 3, we get 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 3319.0
The remainder is 1 after subtracting 27 from 28.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 3

On to step 5:
11 divided by 3 is 3 with a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 33193.0
If we take 9 away from 11, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 6:
3 can be fit into 20 6 times, resulting in a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 33193.6
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 7:
3 can be fit into 20 6 times, resulting in a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 33193.66
If we take 18 away from 20, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

After the division, we end up with 33193.66 and a remainder of 0.002.