405309 divided by 91 
We want to divide 405309 by 91.

Advancing to step 1:
91 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 91

Going ahead to step 2:
91 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Grab the next digit (5) from the dividend, add it to 40, then carry on: 405 / 91

On to step 3:
When dividing 405 by 91, we get 4 with a remainder of 41.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 364 from 405, we get 41.
Grab the next digit (3) from the dividend, add it to 41, then carry on: 413 / 91

Step 4:
When dividing 413 by 91, we get 4 with a remainder of 49.
Use 4 as the next digit of our solution. 
Result so far: 44.0
The remainder is 49 after subtracting 364 from 413.
Append the next digit (0) from the dividend to 49 and continue with: 490 / 91

Let's proceed to step 5:
When dividing 490 by 91, we get 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 445.0
If we subtract 455 from 490, we get 35.
Append the next digit (9) from the dividend to 35 and continue with: 359 / 91

Moving on to step 6:
91 goes into 359 3 times with a remainder of 86.
Use 3 as the next digit of our solution. 
Result so far: 4453.0
The remainder is 86 after subtracting 273 from 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Let's proceed to step 7:
91 can be fit into 860 9 times, resulting in a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 4453.9
Subtract 819 from 860 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 8:
If we divide 410 by 91, we get 4 and a remainder of 46.
Put 4 as the next digit of the answer. 
Result so far: 4453.94
The remainder is 46 after subtracting 364 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 9:
91 can be fit into 460 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 4453.945
If we take 455 away from 460, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 10:
50 divided by 91 is 0 with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 4453.945
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 11:
91 goes into 500 5 times with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 4453.94505
Deduct 455 from 500 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 12:
91 goes into 450 4 times with a remainder of 86.
The number 4 becomes the next digit in our result. 
Result so far: 4453.945054
Subtracting 364 from 450 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Step 13:
When dividing 860 by 91, we get 9 with a remainder of 41.
Use 9 as the next digit of our solution. 
Result so far: 4453.9450549
If we take 819 away from 860, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 14:
When dividing 410 by 91, we get 4 with a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 4453.94505494
Subtract 364 from 410 to 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.

The final outcome is 4453.94505494, with a leftover of 4.6e-08.