Let's divide 140721 by 9
Let's see how many times 9 fits into 140721.

On to step 1:
The number 9 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 9

Advancing to step 2:
The number 9 fits into 14 1 times, leaving a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 9 from 14 leaves us with 5.
Append the next digit (0) from the dividend to 5 and continue with: 50 / 9

Advancing to step 3:
50 divided by 9 is 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Deduct 45 from 50 and we're left with 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 9

Going ahead to step 4:
9 goes into 57 6 times with a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 156.0
The remainder is 3 after subtracting 54 from 57.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 9

Step 5:
9 can be fit into 32 3 times, resulting in a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 1563.0
The remainder is 5 after subtracting 27 from 32.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 9

Advancing to step 6:
If we divide 51 by 9, we get 5 and a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 15635.0
The remainder is 6 after subtracting 45 from 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 7:
The number 9 fits into 60 6 times, leaving a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 15635.6
Deduct 54 from 60 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
The number 9 fits into 60 6 times, leaving a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 15635.66
The remainder is 6 after subtracting 54 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 15635.66 with a remainder of 0.006.