We look at the division of 91455978 by 280 
Our goal is to divide 91455978 by 280.

Going ahead to step 1:
If we divide 9 by 280, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 280

Moving on to step 2:
280 goes into 91 0 times with a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Bring next digit (4) of the dividend behind the 91 and repeat the process: 914 / 280

Moving on to step 3:
280 can be fit into 914 3 times, resulting in a remainder of 74.
The next digit of our result is 3. 
Result so far: 3.0
If we take 840 away from 914, we end up with 74.
Grab the next digit (5) from the dividend, add it to 74, then carry on: 745 / 280

Advancing to step 4:
When dividing 745 by 280, we get 2 with a remainder of 185.
Record the quotient 2 as the next digit in the result. 
Result so far: 32.0
If we take 560 away from 745, we end up with 185.
Include the next digit (5) from the dividend after 185, then repeat: 1855 / 280

Advancing to step 5:
If we divide 1855 by 280, we get 6 and a remainder of 175.
Record the quotient 6 as the next digit in the result. 
Result so far: 326.0
Deduct 1680 from 1855 and we're left with 175.
Bring next digit (9) of the dividend behind the 175 and repeat the process: 1759 / 280

Going ahead to step 6:
When dividing 1759 by 280, we get 6 with a remainder of 79.
The next digit of our result is 6. 
Result so far: 3266.0
If we take 1680 away from 1759, we end up with 79.
Include the next digit (7) from the dividend after 79, then repeat: 797 / 280

Step 7:
797 divided by 280 is 2 with a remainder of 237.
Record the quotient 2 as the next digit in the result. 
Result so far: 32662.0
Subtract 560 from 797 to get 237.
Fetch the next digit (8) from the dividend, attach it to 237 and continue: 2378 / 280

Let's proceed to step 8:
When dividing 2378 by 280, we get 8 with a remainder of 138.
The number 8 becomes the next digit in our result. 
Result so far: 326628.0
Subtract 2240 from 2378 to get 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Moving on to step 9:
The number 280 fits into 1380 4 times, leaving a remainder of 260.
The number 4 becomes the next digit in our result. 
Result so far: 326628.4
Subtract 1120 from 1380 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Let's proceed to step 10:
2600 divided by 280 is 9 with a remainder of 80.
The next digit of our result is 9. 
Result so far: 326628.49
Deduct 2520 from 2600 and we're left 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.

Let's proceed to step 11:
When dividing 800 by 280, we get 2 with a remainder of 240.
The next digit of our result is 2. 
Result so far: 326628.492
Subtracting 560 from 800 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 12:
280 can be fit into 2400 8 times, resulting in a remainder of 160.
Use 8 as the next digit of our solution. 
Result so far: 326628.4928
Subtract 2240 from 2400 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 13:
When dividing 1600 by 280, we get 5 with a remainder of 200.
The number 5 becomes the next digit in our result. 
Result so far: 326628.49285
The remainder is 200 after subtracting 1400 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 14:
2000 divided by 280 is 7 with a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 326628.492857
Subtracting 1960 from 2000 leaves us 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.

Going ahead to step 15:
When dividing 400 by 280, we get 1 with a remainder of 120.
Put 1 as the next digit of the answer. 
Result so far: 326628.4928571
Subtracting 280 from 400 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 16:
When dividing 1200 by 280, we get 4 with a remainder of 80.
Use 4 as the next digit of our solution. 
Result so far: 326628.49285714
Subtracting 1120 from 1200 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.

In conclusion, the division gives 326628.49285714 with a balance of 8e-08.