Let's divide 580312 by 86
We want to figure out the number of times 580312 can be divided by 86.

Advancing to step 1:
86 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 86

Going ahead to step 2:
58 divided by 86 is 0 with a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 58 leaves us with 58.
Grab the next digit (0) from the dividend, add it to 58, then carry on: 580 / 86

Going ahead to step 3:
580 divided by 86 is 6 with a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 516 from 580 to get 64.
Include the next digit (3) from the dividend after 64, then repeat: 643 / 86

Going ahead to step 4:
86 can be fit into 643 7 times, resulting in a remainder of 41.
Use 7 as the next digit of our solution. 
Result so far: 67.0
Deduct 602 from 643 and we're left with 41.
Grab the next digit (1) from the dividend, add it to 41, then carry on: 411 / 86

On to step 5:
86 can be fit into 411 4 times, resulting in a remainder of 67.
Put 4 as the next digit of the answer. 
Result so far: 674.0
Deduct 344 from 411 and we're left with 67.
Bring next digit (2) of the dividend behind the 67 and repeat the process: 672 / 86

On to step 6:
If we divide 672 by 86, we get 7 and a remainder of 70.
Use 7 as the next digit of our solution. 
Result so far: 6747.0
Subtracting 602 from 672 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 7:
If we divide 700 by 86, we get 8 and a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 6747.8
Subtract 688 from 700 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 8:
86 can be fit into 120 1 times, resulting in a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 6747.81
Subtract 86 from 120 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 9:
86 can be fit into 340 3 times, resulting in a remainder of 82.
Write down 3 as next digit of the result. 
Result so far: 6747.813
Subtracting 258 from 340 leaves us with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

On to step 10:
If we divide 820 by 86, we get 9 and a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 6747.8139
If we subtract 774 from 820, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 11:
If we divide 460 by 86, we get 5 and a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 6747.81395
If we subtract 430 from 460, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 12:
300 divided by 86 is 3 with a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 6747.813953
Subtracting 258 from 300 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 13:
The number 86 fits into 420 4 times, leaving a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 6747.8139534
Subtract 344 from 420 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 14:
If we divide 760 by 86, we get 8 and a remainder of 72.
Put 8 as the next digit of the answer. 
Result so far: 6747.81395348
Subtract 688 from 760 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 6747.81395348 with a remainder of 7.2e-08.