Let's divide 280408 by 91
We want to figure out the number of times 280408 can be divided by 91.

Let's proceed to step 1:
When dividing 2 by 91, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 91

Let's proceed to step 2:
28 divided by 91 is 0 with a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Take the next digit (0) from the dividend and append it to 28, then repeat: 280 / 91

Going ahead to step 3:
The number 91 fits into 280 3 times, leaving a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 273 away from 280, we end up with 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 91

Advancing to step 4:
91 goes into 74 0 times with a remainder of 74.
Put 0 as the next digit of the answer. 
Result so far: 30.0
The remainder is 74 after subtracting 0 from 74.
Append the next digit (0) from the dividend to 74 and continue with: 740 / 91

Moving on to step 5:
When dividing 740 by 91, we get 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 308.0
Deduct 728 from 740 and we're left with 12.
Append the next digit (8) from the dividend to 12 and continue with: 128 / 91

Advancing to step 6:
91 can be fit into 128 1 times, resulting in a remainder of 37.
Use 1 as the next digit of our solution. 
Result so far: 3081.0
If we take 91 away from 128, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
When dividing 370 by 91, we get 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 3081.4
Subtract 364 from 370 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
If we divide 60 by 91, we get 0 and a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 3081.4
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
91 can be fit into 600 6 times, resulting in a remainder of 54.
Write down 6 as next digit of the result. 
Result so far: 3081.406
If we take 546 away from 600, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 10:
540 divided by 91 is 5 with a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 3081.4065
If we take 455 away from 540, we end up with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Let's proceed to step 11:
When dividing 850 by 91, we get 9 with a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 3081.40659
Subtract 819 from 850 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 12:
310 divided by 91 is 3 with a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 3081.406593
If we take 273 away from 310, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 13:
The number 91 fits into 370 4 times, leaving a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 3081.4065934
If we subtract 364 from 370, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 14:
When dividing 60 by 91, we get 0 with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 3081.4065934
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

After the division, we end up with 3081.4065934 and a remainder of 6e-08.