87863939 ÷ 209 
We're looking to find how many times 209 goes into 87863939.

Going ahead to step 1:
209 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 209

Moving on to step 2:
87 divided by 209 is 0 with a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Bring next digit (8) of the dividend behind the 87 and repeat the process: 878 / 209

Step 3:
209 can be fit into 878 4 times, resulting in a remainder of 42.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 836 from 878 to get 42.
Include the next digit (6) from the dividend after 42, then repeat: 426 / 209

Let's proceed to step 4:
When dividing 426 by 209, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 42.0
If we subtract 418 from 426, we get 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 209

Going ahead to step 5:
209 can be fit into 83 0 times, resulting in a remainder of 83.
Put 0 as the next digit of the answer. 
Result so far: 420.0
The remainder is 83 after subtracting 0 from 83.
Take the next digit (9) from the dividend and append it to 83, then repeat: 839 / 209

Let's proceed to step 6:
If we divide 839 by 209, we get 4 and a remainder of 3.
The number 4 becomes the next digit in our result. 
Result so far: 4204.0
Deduct 836 from 839 and we're left with 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 209

Going ahead to step 7:
33 divided by 209 is 0 with a remainder of 33.
The number 0 becomes the next digit in our result. 
Result so far: 42040.0
If we take 0 away from 33, we end up with 33.
Bring next digit (9) of the dividend behind the 33 and repeat the process: 339 / 209

Going ahead to step 8:
The number 209 fits into 339 1 times, leaving a remainder of 130.
Put 1 as the next digit of the answer. 
Result so far: 420401.0
If we subtract 209 from 339, we get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 9:
1300 divided by 209 is 6 with a remainder of 46.
Use 6 as the next digit of our solution. 
Result so far: 420401.6
Subtracting 1254 from 1300 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 10:
When dividing 460 by 209, we get 2 with a remainder of 42.
The number 2 becomes the next digit in our result. 
Result so far: 420401.62
The remainder is 42 after subtracting 418 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 11:
The number 209 fits into 420 2 times, leaving a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 420401.622
Subtracting 418 from 420 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

After the division, we end up with 420401.622 and a remainder of 0.0002.