We're dividing 13206391 by 287 
Our goal is to divide 13206391 by 287.

Let's proceed to step 1:
287 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 287

Advancing to step 2:
13 divided by 287 is 0 with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Include the next digit (2) from the dividend after 13, then repeat: 132 / 287

Let's proceed to step 3:
287 goes into 132 0 times with a remainder of 132.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 132 after subtracting 0 from 132.
Take the next digit (0) from the dividend and append it to 132, then repeat: 1320 / 287

Let's proceed to step 4:
287 can be fit into 1320 4 times, resulting in a remainder of 172.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 1148 from 1320 leaves us with 172.
Fetch the next digit (6) from the dividend, attach it to 172 and continue: 1726 / 287

Moving on to step 5:
1726 divided by 287 is 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 46.0
Subtract 1722 from 1726 to get 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 287

Going ahead to step 6:
287 goes into 43 0 times with a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 460.0
The remainder is 43 after subtracting 0 from 43.
Bring next digit (9) of the dividend behind the 43 and repeat the process: 439 / 287

Going ahead to step 7:
439 divided by 287 is 1 with a remainder of 152.
Record the quotient 1 as the next digit in the result. 
Result so far: 4601.0
If we take 287 away from 439, we end up with 152.
Include the next digit (1) from the dividend after 152, then repeat: 1521 / 287

Let's proceed to step 8:
1521 divided by 287 is 5 with a remainder of 86.
Record the quotient 5 as the next digit in the result. 
Result so far: 46015.0
The remainder is 86 after subtracting 1435 from 1521.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 9:
287 goes into 860 2 times with a remainder of 286.
The number 2 becomes the next digit in our result. 
Result so far: 46015.2
Subtracting 574 from 860 leaves us with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Step 10:
287 goes into 2860 9 times with a remainder of 277.
Write down 9 as next digit of the result. 
Result so far: 46015.29
Subtracting 2583 from 2860 leaves us with 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Moving on to step 11:
The number 287 fits into 2770 9 times, leaving a remainder of 187.
The next digit of our result is 9. 
Result so far: 46015.299
If we take 2583 away from 2770, we end up with 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

In conclusion, the division gives 46015.299 with a balance of 0.0187.