We look at the division of 285239 by 13 
We want to figure out the number of times 285239 can be divided by 13.

Let's proceed to step 1:
13 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 13

On to step 2:
The number 13 fits into 28 2 times, leaving a remainder of 2.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 26 from 28 and we're left with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 13

Moving on to step 3:
13 goes into 25 1 times with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
Subtract 13 from 25 to get 12.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 13

On to step 4:
When dividing 122 by 13, we get 9 with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 219.0
If we subtract 117 from 122, we get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 13

Advancing to step 5:
53 divided by 13 is 4 with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 2194.0
Subtracting 52 from 53 leaves us with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 13

Step 6:
The number 13 fits into 19 1 times, leaving a remainder of 6.
The next digit of our result is 1. 
Result so far: 21941.0
If we take 13 away from 19, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
When dividing 60 by 13, we get 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 21941.4
If we subtract 52 from 60, 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.

Moving on to step 8:
The number 13 fits into 80 6 times, leaving a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 21941.46
The remainder is 2 after subtracting 78 from 80.
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 9:
If we divide 20 by 13, we get 1 and a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 21941.461
Deduct 13 from 20 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 10:
70 divided by 13 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 21941.4615
Deduct 65 from 70 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 11:
The number 13 fits into 50 3 times, leaving a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 21941.46153
The remainder is 11 after subtracting 39 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 12:
110 divided by 13 is 8 with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 21941.461538
If we take 104 away from 110, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 13:
The number 13 fits into 60 4 times, leaving a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 21941.4615384
Subtract 52 from 60 to 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.

On to step 14:
The number 13 fits into 80 6 times, leaving a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 21941.46153846
Deduct 78 from 80 and we're left 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.

In conclusion, the division gives 21941.46153846 with a balance of 2e-09.