717989 ÷ 9 
We want to figure out the number of times 717989 can be divided by 9.

Moving on to step 1:
7 divided by 9 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 9

Step 2:
When dividing 71 by 9, we get 7 with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 63 from 71, we get 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 9

Going ahead to step 3:
When dividing 87 by 9, we get 9 with a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 79.0
Deduct 81 from 87 and we're left with 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 9

Step 4:
When dividing 69 by 9, we get 7 with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 797.0
Deduct 63 from 69 and we're left with 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 9

Advancing to step 5:
68 divided by 9 is 7 with a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 7977.0
If we subtract 63 from 68, we get 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 9

Going ahead to step 6:
9 can be fit into 59 6 times, resulting in a remainder of 5.
The next digit of our result is 6. 
Result so far: 79776.0
Subtract 54 from 59 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
If we divide 50 by 9, we get 5 and a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 79776.5
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
The number 9 fits into 50 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 79776.55
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 79776.55 with a remaining 0.005.