87239440 ÷ 288 
Our goal is to divide 87239440 by 288.

Going ahead to step 1:
The number 288 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 288

Advancing to step 2:
When dividing 87 by 288, we get 0 with a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 87 leaves us with 87.
Append the next digit (2) from the dividend to 87 and continue with: 872 / 288

Going ahead to step 3:
If we divide 872 by 288, we get 3 and a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 864 from 872 and we're left with 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 288

Advancing to step 4:
288 goes into 83 0 times with a remainder of 83.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
If we subtract 0 from 83, we get 83.
Bring next digit (9) of the dividend behind the 83 and repeat the process: 839 / 288

Moving on to step 5:
When dividing 839 by 288, we get 2 with a remainder of 263.
The number 2 becomes the next digit in our result. 
Result so far: 302.0
The remainder is 263 after subtracting 576 from 839.
Bring next digit (4) of the dividend behind the 263 and repeat the process: 2634 / 288

On to step 6:
The number 288 fits into 2634 9 times, leaving a remainder of 42.
Use 9 as the next digit of our solution. 
Result so far: 3029.0
Subtract 2592 from 2634 to get 42.
Append the next digit (4) from the dividend to 42 and continue with: 424 / 288

Going ahead to step 7:
288 goes into 424 1 times with a remainder of 136.
Put 1 as the next digit of the answer. 
Result so far: 30291.0
The remainder is 136 after subtracting 288 from 424.
Grab the next digit (0) from the dividend, add it to 136, then carry on: 1360 / 288

Step 8:
1360 divided by 288 is 4 with a remainder of 208.
Write down 4 as next digit of the result. 
Result so far: 302914.0
The remainder is 208 after subtracting 1152 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Advancing to step 9:
If we divide 2080 by 288, we get 7 and a remainder of 64.
Record the quotient 7 as the next digit in the result. 
Result so far: 302914.7
Deduct 2016 from 2080 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 10:
If we divide 640 by 288, we get 2 and a remainder of 64.
The next digit of our result is 2. 
Result so far: 302914.72
Deduct 576 from 640 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 11:
If we divide 640 by 288, we get 2 and a remainder of 64.
The number 2 becomes the next digit in our result. 
Result so far: 302914.722
Subtract 576 from 640 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final result is 302914.722 with a remainder of 0.0064.