We look at the division of 863219 by 209 
Let's see how many times 209 fits into 863219.

Step 1:
209 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 209

Going ahead to step 2:
When dividing 86 by 209, we get 0 with a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Take the next digit (3) from the dividend and append it to 86, then repeat: 863 / 209

Step 3:
209 can be fit into 863 4 times, resulting in a remainder of 27.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 836 away from 863, we end up with 27.
Grab the next digit (2) from the dividend, add it to 27, then carry on: 272 / 209

Moving on to step 4:
When dividing 272 by 209, we get 1 with a remainder of 63.
Use 1 as the next digit of our solution. 
Result so far: 41.0
The remainder is 63 after subtracting 209 from 272.
Include the next digit (1) from the dividend after 63, then repeat: 631 / 209

Step 5:
If we divide 631 by 209, we get 3 and a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 413.0
Deduct 627 from 631 and we're left with 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 209

Advancing to step 6:
When dividing 49 by 209, we get 0 with a remainder of 49.
The number 0 becomes the next digit in our result. 
Result so far: 4130.0
If we subtract 0 from 49, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 7:
If we divide 490 by 209, we get 2 and a remainder of 72.
The next digit of our result is 2. 
Result so far: 4130.2
Deduct 418 from 490 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 8:
209 can be fit into 720 3 times, resulting in a remainder of 93.
The number 3 becomes the next digit in our result. 
Result so far: 4130.23
Subtracting 627 from 720 leaves us with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Going ahead to step 9:
The number 209 fits into 930 4 times, leaving a remainder of 94.
The number 4 becomes the next digit in our result. 
Result so far: 4130.234
If we subtract 836 from 930, we get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Moving on to step 10:
209 goes into 940 4 times with a remainder of 104.
Write down 4 as next digit of the result. 
Result so far: 4130.2344
If we subtract 836 from 940, we get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

The final outcome is 4130.2344, with a leftover of 0.00104.