Someone please tell me what is the meaning of "//" I can't understand properly.

Answer 1

You can see floor division like division with integers.

7//4 = 1 (because 4 fits only 1 times into 7)
12//4 = 3 (because 4 fits 3 times into 12)
5//7 = 0 (7 doesn't fit into 5)

It only gets a bit complicated when it comes to negative numbers:
33//4 = 8
-33//4 = -9

See explanation from Shaurya Kushwaha

Answer 2

//(double slash) means Floor division the quotient after dividing two numbers is floored floor means round to lower number or the number without decimal or point.

Answer 3

https://www.sololearn.com/discuss/459718/?ref=app
https://www.sololearn.com/discuss/1532161/?ref=app
https://www.sololearn.com/discuss/572849/?ref=app