280749 ÷ 81 
We're looking to find how many times 81 goes into 280749.

Advancing to step 1:
If we divide 2 by 81, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 81

Moving on to step 2:
If we divide 28 by 81, we get 0 and a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Grab the next digit (0) from the dividend, add it to 28, then carry on: 280 / 81

On to step 3:
81 goes into 280 3 times with a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 243 from 280 and we're left with 37.
Bring next digit (7) of the dividend behind the 37 and repeat the process: 377 / 81

Going ahead to step 4:
The number 81 fits into 377 4 times, leaving a remainder of 53.
Write down 4 as next digit of the result. 
Result so far: 34.0
Deduct 324 from 377 and we're left with 53.
Take the next digit (4) from the dividend and append it to 53, then repeat: 534 / 81

Going ahead to step 5:
If we divide 534 by 81, we get 6 and a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 346.0
Subtract 486 from 534 to get 48.
Take the next digit (9) from the dividend and append it to 48, then repeat: 489 / 81

Going ahead to step 6:
81 goes into 489 6 times with a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 3466.0
Subtract 486 from 489 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
If we divide 30 by 81, we get 0 and a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 3466.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
The number 81 fits into 300 3 times, leaving a remainder of 57.
The next digit of our result is 3. 
Result so far: 3466.03
Subtract 243 from 300 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 9:
When dividing 570 by 81, we get 7 with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 3466.037
Deduct 567 from 570 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 10:
81 goes into 30 0 times with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 3466.037
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
81 can be fit into 300 3 times, resulting in a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 3466.03703
If we subtract 243 from 300, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 12:
570 divided by 81 is 7 with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 3466.037037
Subtracting 567 from 570 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 13:
The number 81 fits into 30 0 times, leaving a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 3466.037037
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 14:
If we divide 300 by 81, we get 3 and a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 3466.03703703
Subtracting 243 from 300 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The final outcome is 3466.03703703, with a leftover of 5.7e-08.