We divide 660186 by 28
We're looking to find how many times 28 goes into 660186.

Step 1:
If we divide 6 by 28, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 28

Going ahead to step 2:
28 can be fit into 66 2 times, resulting in a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 56 from 66 and we're left with 10.
Bring next digit (0) of the dividend behind the 10 and repeat the process: 100 / 28

Advancing to step 3:
28 can be fit into 100 3 times, resulting in a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 23.0
The remainder is 16 after subtracting 84 from 100.
Grab the next digit (1) from the dividend, add it to 16, then carry on: 161 / 28

Advancing to step 4:
When dividing 161 by 28, we get 5 with a remainder of 21.
Write down 5 as next digit of the result. 
Result so far: 235.0
If we take 140 away from 161, we end up with 21.
Append the next digit (8) from the dividend to 21 and continue with: 218 / 28

Step 5:
When dividing 218 by 28, we get 7 with a remainder of 22.
The number 7 becomes the next digit in our result. 
Result so far: 2357.0
If we take 196 away from 218, we end up with 22.
Grab the next digit (6) from the dividend, add it to 22, then carry on: 226 / 28

Step 6:
When dividing 226 by 28, we get 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 23578.0
If we subtract 224 from 226, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
The number 28 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 23578.0
If we subtract 0 from 20, 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.

On to step 8:
28 goes into 200 7 times with a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 23578.07
Subtract 196 from 200 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
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: 23578.071
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.

Let's proceed to step 10:
28 goes into 120 4 times with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 23578.0714
If we subtract 112 from 120, we 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.

Advancing to step 11:
28 goes into 80 2 times with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 23578.07142
Subtract 56 from 80 to 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.

Step 12:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 23578.071428
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.

Step 13:
28 can be fit into 160 5 times, resulting in a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 23578.0714285
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.

Let's proceed to step 14:
200 divided by 28 is 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 23578.07142857
The remainder is 4 after subtracting 196 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 23578.07142857 with a remainder of 4e-09.