Apply standard form, significant figures, rounding, and decimal place value

W.A.L.T: Apply standard form, significant figures, rounding, and decimal place value

This is my maths Goal and how I did it is when you divide decimals you take the point and move it one to the left as 10 only have 1 zero and that make 86.217 and that is how you solve it. if you are use times tables you move the point one to the right.