640284 ÷ 88 
We're looking to find how many times 88 goes into 640284.

Let's proceed to step 1:
If we divide 6 by 88, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 88

Advancing to step 2:
The number 88 fits into 64 0 times, leaving a remainder of 64.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Take the next digit (0) from the dividend and append it to 64, then repeat: 640 / 88

Moving on to step 3:
640 divided by 88 is 7 with a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 616 from 640 and we're left with 24.
Append the next digit (2) from the dividend to 24 and continue with: 242 / 88

Step 4:
88 goes into 242 2 times with a remainder of 66.
The next digit of our result is 2. 
Result so far: 72.0
Subtracting 176 from 242 leaves us with 66.
Fetch the next digit (8) from the dividend, attach it to 66 and continue: 668 / 88

Step 5:
If we divide 668 by 88, we get 7 and a remainder of 52.
The next digit of our result is 7. 
Result so far: 727.0
If we take 616 away from 668, we end up with 52.
Append the next digit (4) from the dividend to 52 and continue with: 524 / 88

Going ahead to step 6:
524 divided by 88 is 5 with a remainder of 84.
Use 5 as the next digit of our solution. 
Result so far: 7275.0
If we subtract 440 from 524, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 7:
If we divide 840 by 88, we get 9 and a remainder of 48.
Use 9 as the next digit of our solution. 
Result so far: 7275.9
Subtracting 792 from 840 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 8:
If we divide 480 by 88, we get 5 and a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 7275.95
If we subtract 440 from 480, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
88 can be fit into 400 4 times, resulting in a remainder of 48.
The next digit of our result is 4. 
Result so far: 7275.954
Subtract 352 from 400 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.

Let's proceed to step 10:
88 goes into 480 5 times with a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 7275.9545
If we subtract 440 from 480, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
400 divided by 88 is 4 with a remainder of 48.
The next digit of our result is 4. 
Result so far: 7275.95454
The remainder is 48 after subtracting 352 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 12:
88 goes into 480 5 times with a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 7275.954545
If we subtract 440 from 480, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 13:
88 can be fit into 400 4 times, resulting in a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 7275.9545454
Subtracting 352 from 400 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 14:
88 goes into 480 5 times with a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 7275.95454545
Deduct 440 from 480 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 7275.95454545, with a leftover of 4e-08.