86099778 divided by 586 
Our goal is to divide 86099778 by 586.

On to step 1:
8 divided by 586 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 586

On to step 2:
The number 586 fits into 86 0 times, leaving a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Fetch the next digit (0) from the dividend, attach it to 86 and continue: 860 / 586

Step 3:
586 goes into 860 1 times with a remainder of 274.
The next digit of our result is 1. 
Result so far: 1.0
If we take 586 away from 860, we end up with 274.
Append the next digit (9) from the dividend to 274 and continue with: 2749 / 586

Going ahead to step 4:
586 can be fit into 2749 4 times, resulting in a remainder of 405.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we subtract 2344 from 2749, we get 405.
Include the next digit (9) from the dividend after 405, then repeat: 4059 / 586

Step 5:
586 goes into 4059 6 times with a remainder of 543.
Record the quotient 6 as the next digit in the result. 
Result so far: 146.0
The remainder is 543 after subtracting 3516 from 4059.
Append the next digit (7) from the dividend to 543 and continue with: 5437 / 586

Moving on to step 6:
When dividing 5437 by 586, we get 9 with a remainder of 163.
Write down 9 as next digit of the result. 
Result so far: 1469.0
Deduct 5274 from 5437 and we're left with 163.
Bring next digit (7) of the dividend behind the 163 and repeat the process: 1637 / 586

Moving on to step 7:
When dividing 1637 by 586, we get 2 with a remainder of 465.
Write down 2 as next digit of the result. 
Result so far: 14692.0
Subtracting 1172 from 1637 leaves us with 465.
Bring next digit (8) of the dividend behind the 465 and repeat the process: 4658 / 586

Going ahead to step 8:
586 can be fit into 4658 7 times, resulting in a remainder of 556.
Use 7 as the next digit of our solution. 
Result so far: 146927.0
If we take 4102 away from 4658, we end up with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Let's proceed to step 9:
If we divide 5560 by 586, we get 9 and a remainder of 286.
Put 9 as the next digit of the answer. 
Result so far: 146927.9
If we take 5274 away from 5560, we end up with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Step 10:
2860 divided by 586 is 4 with a remainder of 516.
The number 4 becomes the next digit in our result. 
Result so far: 146927.94
The remainder is 516 after subtracting 2344 from 2860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Let's proceed to step 11:
586 can be fit into 5160 8 times, resulting in a remainder of 472.
The next digit of our result is 8. 
Result so far: 146927.948
If we take 4688 away from 5160, we end up with 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Moving on to step 12:
When dividing 4720 by 586, we get 8 with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 146927.9488
Subtract 4688 from 4720 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 146927.9488, with a leftover of 0.00032.