We're dividing 858300 by 28 
We want to figure out the number of times 858300 can be divided by 28.

Let's proceed to step 1:
28 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 28

Step 2:
The number 28 fits into 85 3 times, leaving a remainder of 1.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 84 from 85 and we're left with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 28

Step 3:
When dividing 18 by 28, we get 0 with a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 30.0
The remainder is 18 after subtracting 0 from 18.
Grab the next digit (3) from the dividend, add it to 18, then carry on: 183 / 28

Step 4:
28 can be fit into 183 6 times, resulting in a remainder of 15.
Use 6 as the next digit of our solution. 
Result so far: 306.0
If we subtract 168 from 183, we get 15.
Bring next digit (0) of the dividend behind the 15 and repeat the process: 150 / 28

Moving on to step 5:
If we divide 150 by 28, we get 5 and a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 3065.0
Subtracting 140 from 150 leaves us with 10.
Fetch the next digit (0) from the dividend, attach it to 10 and continue: 100 / 28

Moving on to step 6:
If we divide 100 by 28, we get 3 and a remainder of 16.
The next digit of our result is 3. 
Result so far: 30653.0
Deduct 84 from 100 and we're left 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 7:
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: 30653.5
If we subtract 140 from 160, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 8:
200 divided by 28 is 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 30653.57
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.

Advancing to step 9:
When dividing 40 by 28, we get 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 30653.571
If we subtract 28 from 40, we 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.

Advancing to step 10:
120 divided by 28 is 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 30653.5714
The remainder is 8 after subtracting 112 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 11:
28 goes into 80 2 times with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 30653.57142
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.

Step 12:
The number 28 fits into 240 8 times, leaving a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 30653.571428
Subtracting 224 from 240 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.

Going ahead to step 13:
The number 28 fits into 160 5 times, leaving a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 30653.5714285
Subtract 140 from 160 to get 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 14:
28 goes into 200 7 times with a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 30653.57142857
If we take 196 away from 200, we end up 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.

Our division results in 30653.57142857 with a remaining 4e-09.