521913 divided by 9 
We're looking to find how many times 9 goes into 521913.

On to step 1:
9 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 9

Step 2:
52 divided by 9 is 5 with a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we take 45 away from 52, we end up with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 9

Advancing to step 3:
The number 9 fits into 71 7 times, leaving a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 57.0
If we take 63 away from 71, we end up with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 9

On to step 4:
9 goes into 89 9 times with a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 579.0
The remainder is 8 after subtracting 81 from 89.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 9

Moving on to step 5:
If we divide 81 by 9, we get 9 and a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 5799.0
The remainder is 0 after subtracting 81 from 81.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 9

Let's proceed to step 6:
9 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 57990.0
If we take 0 away from 3, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
9 can be fit into 30 3 times, resulting in a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 57990.3
If we take 27 away from 30, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 8:
30 divided by 9 is 3 with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 57990.33
Subtracting 27 from 30 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The quotient of the division is 57990.33, and the remainder is 0.003.