We're dividing 729240 by 85 
We want to figure out the number of times 729240 can be divided by 85.

Moving on to step 1:
85 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 85

Going ahead to step 2:
If we divide 72 by 85, we get 0 and a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 72 to get 72.
Grab the next digit (9) from the dividend, add it to 72, then carry on: 729 / 85

On to step 3:
729 divided by 85 is 8 with a remainder of 49.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 680 from 729 to get 49.
Bring next digit (2) of the dividend behind the 49 and repeat the process: 492 / 85

Step 4:
The number 85 fits into 492 5 times, leaving a remainder of 67.
The number 5 becomes the next digit in our result. 
Result so far: 85.0
If we subtract 425 from 492, we get 67.
Fetch the next digit (4) from the dividend, attach it to 67 and continue: 674 / 85

Moving on to step 5:
85 goes into 674 7 times with a remainder of 79.
Record the quotient 7 as the next digit in the result. 
Result so far: 857.0
If we subtract 595 from 674, we get 79.
Take the next digit (0) from the dividend and append it to 79, then repeat: 790 / 85

Moving on to step 6:
85 can be fit into 790 9 times, resulting in a remainder of 25.
Put 9 as the next digit of the answer. 
Result so far: 8579.0
Subtract 765 from 790 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 7:
250 divided by 85 is 2 with a remainder of 80.
Use 2 as the next digit of our solution. 
Result so far: 8579.2
Deduct 170 from 250 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 8:
The number 85 fits into 800 9 times, leaving a remainder of 35.
The next digit of our result is 9. 
Result so far: 8579.29
If we take 765 away from 800, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 9:
If we divide 350 by 85, we get 4 and a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 8579.294
If we take 340 away from 350, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
85 can be fit into 100 1 times, resulting in a remainder of 15.
The next digit of our result is 1. 
Result so far: 8579.2941
If we subtract 85 from 100, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 11:
If we divide 150 by 85, we get 1 and a remainder of 65.
The next digit of our result is 1. 
Result so far: 8579.29411
Deduct 85 from 150 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final result is 8579.29411 with a remainder of 6.5e-05.