Let's divide 991309 by 10
We want to figure out the number of times 991309 can be divided by 10.

On to step 1:
10 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 10

Moving on to step 2:
99 divided by 10 is 9 with a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtract 90 from 99 to get 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 10

On to step 3:
91 divided by 10 is 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 99.0
Subtracting 90 from 91 leaves us with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 10

Advancing to step 4:
When dividing 13 by 10, we get 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 991.0
If we subtract 10 from 13, we get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 10

Let's proceed to step 5:
10 can be fit into 30 3 times, resulting in a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 9913.0
Deduct 30 from 30 and we're left with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 10

Moving on to step 6:
The number 10 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 99130.0
If we take 0 away from 9, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
If we divide 90 by 10, we get 9 and a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 99130.9
Deduct 90 from 90 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.

Step 8:
10 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 99130.9
Subtracting 0 from 0 leaves us 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 9:
10 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 99130.9
The remainder is 0 after subtracting 0 from 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 outcome is 99130.9, with a leftover of 0.0.