We're dividing 81649965 by 28 
We're looking to find how many times 28 goes into 81649965.

Step 1:
If we divide 8 by 28, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 28

Advancing to step 2:
When dividing 81 by 28, we get 2 with a remainder of 25.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 56 from 81, we get 25.
Fetch the next digit (6) from the dividend, attach it to 25 and continue: 256 / 28

Going ahead to step 3:
28 can be fit into 256 9 times, resulting in a remainder of 4.
The next digit of our result is 9. 
Result so far: 29.0
If we subtract 252 from 256, we get 4.
Append the next digit (4) from the dividend to 4 and continue with: 44 / 28

Let's proceed to step 4:
When dividing 44 by 28, we get 1 with a remainder of 16.
The number 1 becomes the next digit in our result. 
Result so far: 291.0
If we take 28 away from 44, we end up with 16.
Grab the next digit (9) from the dividend, add it to 16, then carry on: 169 / 28

Going ahead to step 5:
When dividing 169 by 28, we get 6 with a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 2916.0
Deduct 168 from 169 and we're left with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 28

Moving on to step 6:
28 can be fit into 19 0 times, resulting in a remainder of 19.
The next digit of our result is 0. 
Result so far: 29160.0
Deduct 0 from 19 and we're left with 19.
Take the next digit (6) from the dividend and append it to 19, then repeat: 196 / 28

Step 7:
The number 28 fits into 196 7 times, leaving a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 291607.0
If we take 196 away from 196, we end up with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 28

Advancing to step 8:
If we divide 5 by 28, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 2916070.0
Subtract 0 from 5 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
When dividing 50 by 28, we get 1 with a remainder of 22.
The next digit of our result is 1. 
Result so far: 2916070.1
If we take 28 away from 50, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 10:
The number 28 fits into 220 7 times, leaving a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 2916070.17
If we subtract 196 from 220, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 11:
If we divide 240 by 28, we get 8 and a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 2916070.178
Subtract 224 from 240 to 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.

Let's proceed to step 12:
If we divide 160 by 28, we get 5 and a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 2916070.1785
If we take 140 away from 160, we end up 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 13:
When dividing 200 by 28, we get 7 with a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 2916070.17857
Subtracting 196 from 200 leaves us 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.

Moving on to step 14:
If we divide 40 by 28, we get 1 and a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 2916070.178571
If we take 28 away from 40, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 15:
When dividing 120 by 28, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 2916070.1785714
Subtract 112 from 120 to get 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 16:
28 goes into 80 2 times with a remainder of 24.
The next digit of our result is 2. 
Result so far: 2916070.17857142
If we take 56 away from 80, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 2916070.17857142 and a remainder of 2.4e-08.