Here's how we get that:

* Move the decimal point: Start with the original number (0.0000000056) and move the decimal point to the right until you have a number between 1 and 10 (which is 5.6).

* Count the moves: You moved the decimal point 9 places to the right.

* Exponent: Since you moved the decimal to the *right*, the exponent is negative.

* Combine: The final result is 5.6 x 10⁻⁹.