230000
1) ignore all the nills at the end
23
2) put a decimal in 23 to make it tens and ones
2.3
3) always write the x 10
2.3 x 10
4) add a power to the 10 - to know what the power is you must count how many positions your decimal point has moved.
2.3 x 10⁵ (the decimal moved 5 places because it wasat the end of 230000 and it is now between 2 and 3)
5) your answer is 5.6 x 10⁵
