243905 ÷ 91 
Our goal is to divide 243905 by 91.

Step 1:
91 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 91

Moving on to step 2:
If we divide 24 by 91, we get 0 and a remainder of 24.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 24 and we're left with 24.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 91

Advancing to step 3:
91 can be fit into 243 2 times, resulting in a remainder of 61.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 61 after subtracting 182 from 243.
Append the next digit (9) from the dividend to 61 and continue with: 619 / 91

Going ahead to step 4:
619 divided by 91 is 6 with a remainder of 73.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
Subtracting 546 from 619 leaves us with 73.
Grab the next digit (0) from the dividend, add it to 73, then carry on: 730 / 91

Step 5:
730 divided by 91 is 8 with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 268.0
Subtracting 728 from 730 leaves us with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 91

Moving on to step 6:
91 goes into 25 0 times with a remainder of 25.
The next digit of our result is 0. 
Result so far: 2680.0
Subtract 0 from 25 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 7:
When dividing 250 by 91, we get 2 with a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 2680.2
Subtract 182 from 250 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 8:
The number 91 fits into 680 7 times, leaving a remainder of 43.
The number 7 becomes the next digit in our result. 
Result so far: 2680.27
The remainder is 43 after subtracting 637 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 9:
91 goes into 430 4 times with a remainder of 66.
Use 4 as the next digit of our solution. 
Result so far: 2680.274
If we subtract 364 from 430, we get 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:
660 divided by 91 is 7 with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 2680.2747
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: 2680.27472
Deduct 182 from 230 and we're left 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.

Moving on to step 12:
If we divide 480 by 91, we get 5 and a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 2680.274725
Deduct 455 from 480 and we're left 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.

On to step 13:
91 can be fit into 250 2 times, resulting in a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 2680.2747252
The remainder is 68 after subtracting 182 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 14:
91 can be fit into 680 7 times, resulting in a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 2680.27472527
If we subtract 637 from 680, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Our division results in 2680.27472527 with a remaining 4.3e-08.