Let's divide 8134580 by 391
We're looking to find how many times 391 goes into 8134580.

Moving on to step 1:
If we divide 8 by 391, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 391

Step 2:
391 goes into 81 0 times with a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Fetch the next digit (3) from the dividend, attach it to 81 and continue: 813 / 391

Going ahead to step 3:
813 divided by 391 is 2 with a remainder of 31.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 782 from 813 to get 31.
Append the next digit (4) from the dividend to 31 and continue with: 314 / 391

On to step 4:
391 goes into 314 0 times with a remainder of 314.
Put 0 as the next digit of the answer. 
Result so far: 20.0
Deduct 0 from 314 and we're left with 314.
Fetch the next digit (5) from the dividend, attach it to 314 and continue: 3145 / 391

Step 5:
If we divide 3145 by 391, we get 8 and a remainder of 17.
The next digit of our result is 8. 
Result so far: 208.0
Subtract 3128 from 3145 to get 17.
Append the next digit (8) from the dividend to 17 and continue with: 178 / 391

Moving on to step 6:
391 goes into 178 0 times with a remainder of 178.
Put 0 as the next digit of the answer. 
Result so far: 2080.0
If we take 0 away from 178, we end up with 178.
Bring next digit (0) of the dividend behind the 178 and repeat the process: 1780 / 391

Let's proceed to step 7:
The number 391 fits into 1780 4 times, leaving a remainder of 216.
The next digit of our result is 4. 
Result so far: 20804.0
The remainder is 216 after subtracting 1564 from 1780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Moving on to step 8:
2160 divided by 391 is 5 with a remainder of 205.
Write down 5 as next digit of the result. 
Result so far: 20804.5
Deduct 1955 from 2160 and we're left with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Let's proceed to step 9:
391 can be fit into 2050 5 times, resulting in a remainder of 95.
The next digit of our result is 5. 
Result so far: 20804.55
Subtracting 1955 from 2050 leaves us with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

The final outcome is 20804.55, with a leftover of 0.095.