we have that
2/3 divided 1/6 is equal to
that means
the number 2/3 is 4 times the number 1/6
see the figure below
4/6 and 2/3 are equivalent fractions
because
4/6=2/3
4*3=2*6
12=12 ----> is ok
If you divided 2/3 into 4 equal parts, each part is equal to 1/6
If you divided 2/3 by 1/6, the result is 4 parts