Multiplying 0.86 by 0.46 will result in 0.40 (rounded off to 2 decimal places)To multiply two decimal numbers, first ignore the decimal points and multiply the numbers as if they were whole numbers. Then, count the total number of digits to the right of the decimal points in both original numbers. Finally, place the decimal point in the result so that it has the same number of digits to the right as the combined total from the original numbers.