8486 ÷ 91 
We're looking to find how many times 91 goes into 8486.

Let's proceed to step 1:
91 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 91

Moving on to step 2:
91 can be fit into 84 0 times, resulting in a remainder of 84.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 84 and we're left with 84.
Bring next digit (8) of the dividend behind the 84 and repeat the process: 848 / 91

On to step 3:
The number 91 fits into 848 9 times, leaving a remainder of 29.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 819 from 848 to get 29.
Include the next digit (6) from the dividend after 29, then repeat: 296 / 91

On to step 4:
91 can be fit into 296 3 times, resulting in a remainder of 23.
The next digit of our result is 3. 
Result so far: 93.0
Subtracting 273 from 296 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 5:
When dividing 230 by 91, we get 2 with a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 93.2
If we take 182 away from 230, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 6:
If we divide 480 by 91, we get 5 and a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 93.25
The remainder is 25 after subtracting 455 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 7:
If we divide 250 by 91, we get 2 and a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 93.252
Deduct 182 from 250 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 8:
91 goes into 680 7 times with a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 93.2527
Subtracting 637 from 680 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 9:
91 can be fit into 430 4 times, resulting in a remainder of 66.
The next digit of our result is 4. 
Result so far: 93.25274
If we take 364 away from 430, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 10:
If we divide 660 by 91, we get 7 and a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 93.252747
Subtract 637 from 660 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 11:
91 goes into 230 2 times with a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 93.2527472
If we subtract 182 from 230, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 12:
480 divided by 91 is 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 93.25274725
Subtracting 455 from 480 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 93.25274725 with a remainder of 2.5e-08.