We're dividing 103863 by 91 
We want to divide 103863 by 91.

On to step 1:
If we divide 1 by 91, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 91

Moving on to step 2:
91 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 10, we get 10.
Include the next digit (3) from the dividend after 10, then repeat: 103 / 91

Going ahead to step 3:
103 divided by 91 is 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 91 away from 103, we end up with 12.
Grab the next digit (8) from the dividend, add it to 12, then carry on: 128 / 91

Let's proceed to step 4:
The number 91 fits into 128 1 times, leaving a remainder of 37.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtract 91 from 128 to get 37.
Grab the next digit (6) from the dividend, add it to 37, then carry on: 376 / 91

Advancing to step 5:
The number 91 fits into 376 4 times, leaving a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 114.0
If we take 364 away from 376, we end up with 12.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 91

Advancing to step 6:
The number 91 fits into 123 1 times, leaving a remainder of 32.
The next digit of our result is 1. 
Result so far: 1141.0
Subtracting 91 from 123 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 7:
320 divided by 91 is 3 with a remainder of 47.
The number 3 becomes the next digit in our result. 
Result so far: 1141.3
Subtract 273 from 320 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 8:
91 can be fit into 470 5 times, resulting in a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 1141.35
Deduct 455 from 470 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
150 divided by 91 is 1 with a remainder of 59.
The next digit of our result is 1. 
Result so far: 1141.351
If we take 91 away from 150, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 10:
If we divide 590 by 91, we get 6 and a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 1141.3516
Deduct 546 from 590 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 11:
91 goes into 440 4 times with a remainder of 76.
The next digit of our result is 4. 
Result so far: 1141.35164
Deduct 364 from 440 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 12:
If we divide 760 by 91, we get 8 and a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 1141.351648
Subtract 728 from 760 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 13:
320 divided by 91 is 3 with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 1141.3516483
The remainder is 47 after subtracting 273 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 14:
91 can be fit into 470 5 times, resulting in a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 1141.35164835
Subtracting 455 from 470 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 1141.35164835, with a leftover of 1.5e-08.