Let's divide 991390 by 10
We're looking to find how many times 10 goes into 991390.

On to step 1:
When dividing 9 by 10, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 10

On to step 2:
99 divided by 10 is 9 with a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 9 after subtracting 90 from 99.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 10

Let's proceed to step 3:
If we divide 91 by 10, we get 9 and a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
Subtracting 90 from 91 leaves us with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 10

Going ahead to step 4:
If we divide 13 by 10, we get 1 and a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 991.0
The remainder is 3 after subtracting 10 from 13.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 10

Moving on to step 5:
39 divided by 10 is 3 with a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 9913.0
If we take 30 away from 39, we end up with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 10

Moving on to step 6:
90 divided by 10 is 9 with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 99139.0
Subtracting 90 from 90 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.

Going ahead to step 7:
0 divided by 10 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 99139.0
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.

Let's proceed to step 8:
0 divided by 10 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 99139.0
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.

Our division results in 99139.0 with a remaining 0.0.