We look at the division of 905191 by 9 
We want to figure out the number of times 905191 can be divided by 9.

On to step 1:
9 can be fit into 9 1 times, resulting in a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 0 after subtracting 9 from 9.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 9

Let's proceed to step 2:
If we divide 0 by 9, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 0 to get 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 9

Advancing to step 3:
If we divide 5 by 9, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 100.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 9

Advancing to step 4:
51 divided by 9 is 5 with a remainder of 6.
The next digit of our result is 5. 
Result so far: 1005.0
Subtracting 45 from 51 leaves us with 6.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 9

Moving on to step 5:
9 can be fit into 69 7 times, resulting in a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 10057.0
The remainder is 6 after subtracting 63 from 69.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 9

Let's proceed to step 6:
When dividing 61 by 9, we get 6 with a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 100576.0
If we take 54 away from 61, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
9 goes into 70 7 times with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 100576.7
Subtracting 63 from 70 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 8:
9 can be fit into 70 7 times, resulting in a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 100576.77
The remainder is 7 after subtracting 63 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Our division results in 100576.77 with a remaining 0.007.