We're dividing 639450 by 88 
Let's see how many times 88 fits into 639450.

Advancing to step 1:
When dividing 6 by 88, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 88

Let's proceed to step 2:
88 can be fit into 63 0 times, resulting in a remainder of 63.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Fetch the next digit (9) from the dividend, attach it to 63 and continue: 639 / 88

Step 3:
When dividing 639 by 88, we get 7 with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 23 after subtracting 616 from 639.
Bring next digit (4) of the dividend behind the 23 and repeat the process: 234 / 88

Moving on to step 4:
88 can be fit into 234 2 times, resulting in a remainder of 58.
Write down 2 as next digit of the result. 
Result so far: 72.0
Subtract 176 from 234 to get 58.
Grab the next digit (5) from the dividend, add it to 58, then carry on: 585 / 88

Let's proceed to step 5:
When dividing 585 by 88, we get 6 with a remainder of 57.
Write down 6 as next digit of the result. 
Result so far: 726.0
If we take 528 away from 585, we end up with 57.
Take the next digit (0) from the dividend and append it to 57, then repeat: 570 / 88

Going ahead to step 6:
88 can be fit into 570 6 times, resulting in a remainder of 42.
The next digit of our result is 6. 
Result so far: 7266.0
If we subtract 528 from 570, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 7:
88 goes into 420 4 times with a remainder of 68.
Put 4 as the next digit of the answer. 
Result so far: 7266.4
If we take 352 away from 420, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 8:
88 goes into 680 7 times with a remainder of 64.
Use 7 as the next digit of our solution. 
Result so far: 7266.47
If we subtract 616 from 680, we 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.

Going ahead to step 9:
640 divided by 88 is 7 with a remainder of 24.
Write down 7 as next digit of the result. 
Result so far: 7266.477
If we subtract 616 from 640, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 7266.477 and a remainder of 0.0024.