We divide 780579 by 9
We want to divide 780579 by 9.

Going ahead to step 1:
When dividing 7 by 9, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 9

Step 2:
When dividing 78 by 9, we get 8 with a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 72 from 78 to get 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 9

Step 3:
When dividing 60 by 9, we get 6 with a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 86.0
The remainder is 6 after subtracting 54 from 60.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 9

On to step 4:
9 goes into 65 7 times with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 867.0
Subtracting 63 from 65 leaves us with 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 9

On to step 5:
9 can be fit into 27 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 8673.0
Subtracting 27 from 27 leaves us with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 9

Advancing to step 6:
The number 9 fits into 9 1 times, leaving a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 86731.0
Deduct 9 from 9 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
9 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 86731.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
0 divided by 9 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 86731.0
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.

The final result is 86731.0 with a remainder of 0.0.