The rule is:
• first perform the multiplication as if there were no decimal points in it,
giving here the number 325 926
• then count how many digits are behind (to the right of) the decimal point in both numbers,
in this case 5 (3 + 2)
• insert the decimal point that many digits from the right to give the correct answer, in this
case, move 5 places from the right to give 3.25926