Kim multiplied 8 by 0.952 and got 76.16 how can you estimate to show that kim's answer is incorrect

Kim multiplied 8 by 0.952 and got 76.16 which is the wrong answer, the correct answer is 7.616. His mistake is about decimal point.
he is multiplying a number with a decimal number and decimal number have first digit less than 1 that is zero. In decimal number point is after zero so when you multiply that number with 8 the answer should have decimal point after first digit.