We're dividing 209986 by 75 
Our goal is to divide 209986 by 75.

On to step 1:
75 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 75

Moving on to step 2:
75 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Bring next digit (9) of the dividend behind the 20 and repeat the process: 209 / 75

Moving on to step 3:
If we divide 209 by 75, we get 2 and a remainder of 59.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 150 from 209, we get 59.
Fetch the next digit (9) from the dividend, attach it to 59 and continue: 599 / 75

On to step 4:
If we divide 599 by 75, we get 7 and a remainder of 74.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
If we take 525 away from 599, we end up with 74.
Grab the next digit (8) from the dividend, add it to 74, then carry on: 748 / 75

Advancing to step 5:
When dividing 748 by 75, we get 9 with a remainder of 73.
Record the quotient 9 as the next digit in the result. 
Result so far: 279.0
The remainder is 73 after subtracting 675 from 748.
Take the next digit (6) from the dividend and append it to 73, then repeat: 736 / 75

Advancing to step 6:
75 can be fit into 736 9 times, resulting in a remainder of 61.
The next digit of our result is 9. 
Result so far: 2799.0
Subtract 675 from 736 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 7:
When dividing 610 by 75, we get 8 with a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 2799.8
Subtracting 600 from 610 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.

Advancing to step 8:
When dividing 100 by 75, we get 1 with a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 2799.81
If we take 75 away from 100, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 9:
When dividing 250 by 75, we get 3 with a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 2799.813
If we take 225 away from 250, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 10:
250 divided by 75 is 3 with a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 2799.8133
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 2799.8133 with a remainder of 0.00025.