We look at the division of 6403539 by 288 
We want to figure out the number of times 6403539 can be divided by 288.

Moving on to step 1:
288 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 288

Step 2:
288 goes into 64 0 times with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Include the next digit (0) from the dividend after 64, then repeat: 640 / 288

Let's proceed to step 3:
The number 288 fits into 640 2 times, leaving a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 576 from 640 and we're left with 64.
Fetch the next digit (3) from the dividend, attach it to 64 and continue: 643 / 288

Step 4:
When dividing 643 by 288, we get 2 with a remainder of 67.
Write down 2 as next digit of the result. 
Result so far: 22.0
If we take 576 away from 643, we end up with 67.
Take the next digit (5) from the dividend and append it to 67, then repeat: 675 / 288

Going ahead to step 5:
675 divided by 288 is 2 with a remainder of 99.
Write down 2 as next digit of the result. 
Result so far: 222.0
The remainder is 99 after subtracting 576 from 675.
Append the next digit (3) from the dividend to 99 and continue with: 993 / 288

Advancing to step 6:
993 divided by 288 is 3 with a remainder of 129.
The number 3 becomes the next digit in our result. 
Result so far: 2223.0
If we take 864 away from 993, we end up with 129.
Bring next digit (9) of the dividend behind the 129 and repeat the process: 1299 / 288

On to step 7:
1299 divided by 288 is 4 with a remainder of 147.
Record the quotient 4 as the next digit in the result. 
Result so far: 22234.0
Subtracting 1152 from 1299 leaves us with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Moving on to step 8:
288 goes into 1470 5 times with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 22234.5
Subtracting 1440 from 1470 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 9:
If we divide 300 by 288, we get 1 and a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 22234.51
Deduct 288 from 300 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 10:
120 divided by 288 is 0 with a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 22234.51
Deduct 0 from 120 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 11:
The number 288 fits into 1200 4 times, leaving a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 22234.5104
Subtract 1152 from 1200 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 12:
If we divide 480 by 288, we get 1 and a remainder of 192.
Put 1 as the next digit of the answer. 
Result so far: 22234.51041
If we subtract 288 from 480, we get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Moving on to step 13:
When dividing 1920 by 288, we get 6 with a remainder of 192.
The next digit of our result is 6. 
Result so far: 22234.510416
If we take 1728 away from 1920, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Step 14:
288 goes into 1920 6 times with a remainder of 192.
The next digit of our result is 6. 
Result so far: 22234.5104166
If we subtract 1728 from 1920, we get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

After the division, we end up with 22234.5104166 and a remainder of 1.92e-06.