We're dividing 809910 by 28 
We want to figure out the number of times 809910 can be divided by 28.

Step 1:
The number 28 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 28

Advancing to step 2:
The number 28 fits into 80 2 times, leaving a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 56 from 80 leaves us with 24.
Grab the next digit (9) from the dividend, add it to 24, then carry on: 249 / 28

Moving on to step 3:
28 can be fit into 249 8 times, resulting in a remainder of 25.
Write down 8 as next digit of the result. 
Result so far: 28.0
Subtracting 224 from 249 leaves us with 25.
Append the next digit (9) from the dividend to 25 and continue with: 259 / 28

Moving on to step 4:
When dividing 259 by 28, we get 9 with a remainder of 7.
The next digit of our result is 9. 
Result so far: 289.0
If we take 252 away from 259, we end up with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 28

Step 5:
If we divide 71 by 28, we get 2 and a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 2892.0
If we subtract 56 from 71, we get 15.
Append the next digit (0) from the dividend to 15 and continue with: 150 / 28

Advancing to step 6:
The number 28 fits into 150 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 28925.0
Deduct 140 from 150 and we're left 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.

Moving on to step 7:
28 goes into 100 3 times with a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 28925.3
If we subtract 84 from 100, 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.

Advancing to step 8:
When dividing 160 by 28, we get 5 with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 28925.35
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.

On to step 9:
200 divided by 28 is 7 with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 28925.357
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.

Step 10:
40 divided by 28 is 1 with a remainder of 12.
The next digit of our result is 1. 
Result so far: 28925.3571
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.

Let's proceed to step 11:
If we divide 120 by 28, we get 4 and a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 28925.35714
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.

Going ahead to step 12:
28 goes into 80 2 times with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 28925.357142
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.

Advancing to step 13:
28 goes into 240 8 times with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 28925.3571428
The remainder is 16 after subtracting 224 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 14:
When dividing 160 by 28, we get 5 with a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 28925.35714285
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.

After the division, we end up with 28925.35714285 and a remainder of 2e-08.