215378 ÷ 91 
Let's see how many times 91 fits into 215378.

Going ahead to step 1:
When dividing 2 by 91, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 91

Going ahead to step 2:
When dividing 21 by 91, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (5) from the dividend after 21, then repeat: 215 / 91

Moving on to step 3:
If we divide 215 by 91, we get 2 and a remainder of 33.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 182 from 215 leaves us with 33.
Fetch the next digit (3) from the dividend, attach it to 33 and continue: 333 / 91

Going ahead to step 4:
If we divide 333 by 91, we get 3 and a remainder of 60.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we subtract 273 from 333, we get 60.
Fetch the next digit (7) from the dividend, attach it to 60 and continue: 607 / 91

Moving on to step 5:
When dividing 607 by 91, we get 6 with a remainder of 61.
Put 6 as the next digit of the answer. 
Result so far: 236.0
If we take 546 away from 607, we end up with 61.
Include the next digit (8) from the dividend after 61, then repeat: 618 / 91

Step 6:
618 divided by 91 is 6 with a remainder of 72.
Put 6 as the next digit of the answer. 
Result so far: 2366.0
Subtract 546 from 618 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 7:
The number 91 fits into 720 7 times, leaving a remainder of 83.
Put 7 as the next digit of the answer. 
Result so far: 2366.7
If we subtract 637 from 720, we get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Step 8:
If we divide 830 by 91, we get 9 and a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 2366.79
The remainder is 11 after subtracting 819 from 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 9:
91 can be fit into 110 1 times, resulting in a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 2366.791
Subtracting 91 from 110 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 10:
The number 91 fits into 190 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 2366.7912
Subtracting 182 from 190 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 11:
80 divided by 91 is 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 2366.7912
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 12:
The number 91 fits into 800 8 times, leaving a remainder of 72.
Write down 8 as next digit of the result. 
Result so far: 2366.791208
Deduct 728 from 800 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 13:
91 can be fit into 720 7 times, resulting in a remainder of 83.
Write down 7 as next digit of the result. 
Result so far: 2366.7912087
Subtract 637 from 720 to get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Moving on to step 14:
830 divided by 91 is 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 2366.79120879
Deduct 819 from 830 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

In conclusion, the division gives 2366.79120879 with a balance of 1.1e-08.