We look at the division of 580511 by 87 
Let's see how many times 87 fits into 580511.

Moving on to step 1:
The number 87 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 87

On to step 2:
The number 87 fits into 58 0 times, leaving a remainder of 58.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 58, we get 58.
Fetch the next digit (0) from the dividend, attach it to 58 and continue: 580 / 87

Step 3:
When dividing 580 by 87, we get 6 with a remainder of 58.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 522 from 580, we get 58.
Take the next digit (5) from the dividend and append it to 58, then repeat: 585 / 87

On to step 4:
585 divided by 87 is 6 with a remainder of 63.
Put 6 as the next digit of the answer. 
Result so far: 66.0
If we subtract 522 from 585, we get 63.
Bring next digit (1) of the dividend behind the 63 and repeat the process: 631 / 87

On to step 5:
When dividing 631 by 87, we get 7 with a remainder of 22.
Put 7 as the next digit of the answer. 
Result so far: 667.0
Subtracting 609 from 631 leaves us with 22.
Include the next digit (1) from the dividend after 22, then repeat: 221 / 87

Let's proceed to step 6:
If we divide 221 by 87, we get 2 and a remainder of 47.
Use 2 as the next digit of our solution. 
Result so far: 6672.0
Subtract 174 from 221 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 7:
470 divided by 87 is 5 with a remainder of 35.
The next digit of our result is 5. 
Result so far: 6672.5
Deduct 435 from 470 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 8:
If we divide 350 by 87, we get 4 and a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 6672.54
If we take 348 away from 350, 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.

On to step 9:
20 divided by 87 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 6672.54
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 10:
87 can be fit into 200 2 times, resulting in a remainder of 26.
The next digit of our result is 2. 
Result so far: 6672.5402
Subtract 174 from 200 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 11:
87 can be fit into 260 2 times, resulting in a remainder of 86.
Put 2 as the next digit of the answer. 
Result so far: 6672.54022
Subtracting 174 from 260 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

The final result is 6672.54022 with a remainder of 8.6e-05.