Let's divide 280166 by 91
We want to divide 280166 by 91.

Going ahead to step 1:
2 divided by 91 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 91

Let's proceed to step 2:
91 can be fit into 28 0 times, resulting in a remainder of 28.
Put 0 as the next digit of the answer. 
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

Advancing to step 3:
91 goes into 280 3 times with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 273 from 280 and we're left with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 91

Advancing to step 4:
If we divide 71 by 91, we get 0 and a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtract 0 from 71 to get 71.
Include the next digit (6) from the dividend after 71, then repeat: 716 / 91

Moving on to step 5:
If we divide 716 by 91, we get 7 and a remainder of 79.
The number 7 becomes the next digit in our result. 
Result so far: 307.0
The remainder is 79 after subtracting 637 from 716.
Grab the next digit (6) from the dividend, add it to 79, then carry on: 796 / 91

Moving on to step 6:
91 can be fit into 796 8 times, resulting in a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 3078.0
Subtract 728 from 796 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.

Advancing to step 7:
When dividing 680 by 91, we get 7 with a remainder of 43.
The next digit of our result is 7. 
Result so far: 3078.7
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 8:
If we divide 430 by 91, we get 4 and a remainder of 66.
Use 4 as the next digit of our solution. 
Result so far: 3078.74
The remainder is 66 after subtracting 364 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 9:
91 can be fit into 660 7 times, resulting in a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 3078.747
Subtracting 637 from 660 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 10:
91 can be fit into 230 2 times, resulting in a remainder of 48.
The next digit of our result is 2. 
Result so far: 3078.7472
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.

On to step 11:
When dividing 480 by 91, we get 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 3078.74725
The remainder is 25 after subtracting 455 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 12:
If we divide 250 by 91, we get 2 and a remainder of 68.
The next digit of our result is 2. 
Result so far: 3078.747252
Subtracting 182 from 250 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 13:
680 divided by 91 is 7 with a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 3078.7472527
Deduct 637 from 680 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 14:
If we divide 430 by 91, we get 4 and a remainder of 66.
Record the quotient 4 as the next digit in the result. 
Result so far: 3078.74725274
Subtract 364 from 430 to 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.

After the division, we end up with 3078.74725274 and a remainder of 6.6e-08.