We divide 406591 by 9
We want to figure out the number of times 406591 can be divided by 9.

Let's proceed to step 1:
If we divide 4 by 9, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 9

On to step 2:
9 goes into 40 4 times with a remainder of 4.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 36 from 40 to get 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 9

Let's proceed to step 3:
If we divide 46 by 9, we get 5 and a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 45.0
If we subtract 45 from 46, we get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 9

Let's proceed to step 4:
9 goes into 15 1 times with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 451.0
Deduct 9 from 15 and we're left with 6.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 9

Going ahead to step 5:
When dividing 69 by 9, we get 7 with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 4517.0
If we take 63 away from 69, we end up with 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 9

On to step 6:
9 goes into 61 6 times with a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 45176.0
Subtract 54 from 61 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
When dividing 70 by 9, we get 7 with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 45176.7
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:
When dividing 70 by 9, we get 7 with a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 45176.77
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.

Our division results in 45176.77 with a remaining 0.007.