We look at the division of 639784 by 8 
We want to figure out the number of times 639784 can be divided by 8.

Moving on to step 1:
When dividing 6 by 8, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 8

Step 2:
If we divide 63 by 8, we get 7 and a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 56 from 63, we get 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 8

Going ahead to step 3:
The number 8 fits into 79 9 times, leaving a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 79.0
Subtract 72 from 79 to get 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 8

Moving on to step 4:
77 divided by 8 is 9 with a remainder of 5.
The next digit of our result is 9. 
Result so far: 799.0
Subtract 72 from 77 to get 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 8

Let's proceed to step 5:
58 divided by 8 is 7 with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 7997.0
If we subtract 56 from 58, we get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 8

On to step 6:
When dividing 24 by 8, we get 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 79973.0
Subtract 24 from 24 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
The number 8 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 79973.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
0 divided by 8 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 79973.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 79973.0 and a remainder of 0.0.