We divide 999580 by 91
We want to divide 999580 by 91.

Going ahead to step 1:
91 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 91

Advancing to step 2:
91 can be fit into 99 1 times, resulting in a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 91 from 99 leaves us with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 91

Moving on to step 3:
91 can be fit into 89 0 times, resulting in a remainder of 89.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 89 to get 89.
Take the next digit (5) from the dividend and append it to 89, then repeat: 895 / 91

On to step 4:
The number 91 fits into 895 9 times, leaving a remainder of 76.
Record the quotient 9 as the next digit in the result. 
Result so far: 109.0
The remainder is 76 after subtracting 819 from 895.
Fetch the next digit (8) from the dividend, attach it to 76 and continue: 768 / 91

Going ahead to step 5:
If we divide 768 by 91, we get 8 and a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 1098.0
Subtracting 728 from 768 leaves us with 40.
Append the next digit (0) from the dividend to 40 and continue with: 400 / 91

Let's proceed to step 6:
91 goes into 400 4 times with a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 10984.0
The remainder is 36 after subtracting 364 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 7:
The number 91 fits into 360 3 times, leaving a remainder of 87.
Use 3 as the next digit of our solution. 
Result so far: 10984.3
If we subtract 273 from 360, we get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 8:
When dividing 870 by 91, we get 9 with a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 10984.39
If we subtract 819 from 870, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 9:
The number 91 fits into 510 5 times, leaving a remainder of 55.
The next digit of our result is 5. 
Result so far: 10984.395
The remainder is 55 after subtracting 455 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 10:
91 can be fit into 550 6 times, resulting in a remainder of 4.
The next digit of our result is 6. 
Result so far: 10984.3956
Subtracting 546 from 550 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 11:
The number 91 fits into 40 0 times, leaving a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 10984.3956
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 12:
91 goes into 400 4 times with a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 10984.395604
Subtract 364 from 400 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 13:
91 can be fit into 360 3 times, resulting in a remainder of 87.
The next digit of our result is 3. 
Result so far: 10984.3956043
Subtract 273 from 360 to get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Advancing to step 14:
870 divided by 91 is 9 with a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 10984.39560439
Subtracting 819 from 870 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

The final result is 10984.39560439 with a remainder of 5.1e-08.