Exactly as you have done in the question.
0.0456 is the answer to your question.
456*105 = 45 600 000, that is 456 followed by 5 zeros.
456 L = 456 000 mLTo convert from L to mL, multiply by 1000.
Choose the actual number part in the number. These would be the significant digits. Write that number with a decimal point after the first digit. Then multiply by a power of ten to push the decimal point back to where it should be. Example 602 000 000 000 000 000 000 000 is a chemist's favorite number. Take the actual number 602 Write with decimal point after first digit 6.02 Multiply by a power of ten to put the decimal point back. Look at the original number. There are 23 places after the 6 (including the 02) so multiply by 1023 6.02 x 1023 If the number is small like 0.000 000 023 456 23456 is the actual number 2.3456 has the decimal seven zero's and the 2 are the places to move past. Notice the decimal will move left so the exponent is negative 2.3456 x 10-8
456 698 in words is four hundred and fifty six thousand, six hundred and ninety eight.
456 = 4.56*102
10001/999900
0.456 = (0 x 100) + (4/101) + (5/102) + (6/103)
67 456 000
4.56 = 456%
The number 456 can be represented by the Roman numeral CDLVI
It is so simple and quick to get the answer if only you could be bothered to use your calculator. The answer is 809,803,552