We look at the division of 581251 by 36 
We want to figure out the number of times 581251 can be divided by 36.

Going ahead to step 1:
If we divide 5 by 36, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 36

Going ahead to step 2:
If we divide 58 by 36, we get 1 and a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 22 after subtracting 36 from 58.
Grab the next digit (1) from the dividend, add it to 22, then carry on: 221 / 36

Advancing to step 3:
36 goes into 221 6 times with a remainder of 5.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we subtract 216 from 221, we get 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 36

Going ahead to step 4:
If we divide 52 by 36, we get 1 and a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 161.0
Subtracting 36 from 52 leaves us with 16.
Fetch the next digit (5) from the dividend, attach it to 16 and continue: 165 / 36

On to step 5:
If we divide 165 by 36, we get 4 and a remainder of 21.
Use 4 as the next digit of our solution. 
Result so far: 1614.0
Deduct 144 from 165 and we're left with 21.
Append the next digit (1) from the dividend to 21 and continue with: 211 / 36

On to step 6:
211 divided by 36 is 5 with a remainder of 31.
The next digit of our result is 5. 
Result so far: 16145.0
Subtracting 180 from 211 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 7:
If we divide 310 by 36, we get 8 and a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 16145.8
Subtracting 288 from 310 leaves us 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 8:
220 divided by 36 is 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 16145.86
Subtract 216 from 220 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
The number 36 fits into 40 1 times, leaving a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 16145.861
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
If we divide 40 by 36, we get 1 and a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 16145.8611
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 16145.8611 with a remainder of 4e-05.