81103331 ÷ 28 
We're looking to find how many times 28 goes into 81103331.

Let's proceed to step 1:
28 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 28

Let's proceed to step 2:
28 can be fit into 81 2 times, resulting in a remainder of 25.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 56 from 81 and we're left with 25.
Append the next digit (1) from the dividend to 25 and continue with: 251 / 28

Let's proceed to step 3:
251 divided by 28 is 8 with a remainder of 27.
Put 8 as the next digit of the answer. 
Result so far: 28.0
If we take 224 away from 251, we end up with 27.
Bring next digit (0) of the dividend behind the 27 and repeat the process: 270 / 28

Step 4:
If we divide 270 by 28, we get 9 and a remainder of 18.
The next digit of our result is 9. 
Result so far: 289.0
Subtracting 252 from 270 leaves us with 18.
Include the next digit (3) from the dividend after 18, then repeat: 183 / 28

On to step 5:
When dividing 183 by 28, we get 6 with a remainder of 15.
Put 6 as the next digit of the answer. 
Result so far: 2896.0
If we subtract 168 from 183, we get 15.
Bring next digit (3) of the dividend behind the 15 and repeat the process: 153 / 28

Going ahead to step 6:
When dividing 153 by 28, we get 5 with a remainder of 13.
The next digit of our result is 5. 
Result so far: 28965.0
If we take 140 away from 153, we end up with 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 28

Going ahead to step 7:
133 divided by 28 is 4 with a remainder of 21.
Record the quotient 4 as the next digit in the result. 
Result so far: 289654.0
The remainder is 21 after subtracting 112 from 133.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 28

Moving on to step 8:
211 divided by 28 is 7 with a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 2896547.0
If we subtract 196 from 211, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 9:
28 goes into 150 5 times with a remainder of 10.
The next digit of our result is 5. 
Result so far: 2896547.5
Subtracting 140 from 150 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
100 divided by 28 is 3 with a remainder of 16.
Write down 3 as next digit of the result. 
Result so far: 2896547.53
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 11:
160 divided by 28 is 5 with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 2896547.535
Subtracting 140 from 160 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 12:
The number 28 fits into 200 7 times, leaving a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 2896547.5357
Deduct 196 from 200 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 13:
28 goes into 40 1 times with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 2896547.53571
Subtract 28 from 40 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 14:
28 goes into 120 4 times with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 2896547.535714
If we take 112 away from 120, we end up 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 15:
When dividing 80 by 28, we get 2 with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 2896547.5357142
The remainder is 24 after subtracting 56 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 16:
28 goes into 240 8 times with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 2896547.53571428
If we subtract 224 from 240, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 2896547.53571428 with a balance of 1.6e-08.