Why 26 // 5 / 2 = 2.5 ? I dont understand it :(

Answer 1

26 // 5 = 5, which means 5 goes into 26 for 5 times :)

Answer 2

// floor division which is nothing but a quotiant.
26 has five 5's so it shows the quotiant
if you want to see the reminder 1 you can use %
26 % 5 = 1