We look at the division of 57456390 by 9 
We're looking to find how many times 9 goes into 57456390.

Step 1:
The number 9 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 9

Moving on to step 2:
When dividing 57 by 9, we get 6 with a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 54 from 57 and we're left with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 9

Moving on to step 3:
The number 9 fits into 34 3 times, leaving a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 63.0
If we subtract 27 from 34, we get 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 9

Going ahead to step 4:
9 goes into 75 8 times with a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 638.0
Subtract 72 from 75 to get 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 9

Advancing to step 5:
When dividing 36 by 9, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 6384.0
Deduct 36 from 36 and we're left with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 9

Advancing to step 6:
When dividing 3 by 9, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 63840.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 9

Going ahead to step 7:
9 can be fit into 39 4 times, resulting in a remainder of 3.
The number 4 becomes the next digit in our result. 
Result so far: 638404.0
Deduct 36 from 39 and we're left with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 9

Step 8:
When dividing 30 by 9, we get 3 with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 6384043.0
Deduct 27 from 30 and we're left 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 9:
The number 9 fits into 30 3 times, leaving a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 6384043.3
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.

Going ahead to step 10:
9 can be fit into 30 3 times, resulting in a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 6384043.33
Deduct 27 from 30 and we're left 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.

In conclusion, the division gives 6384043.33 with a balance of 0.003.