Python Recursion Function (How to calculate it with two or more arguments)

Question

Final amount is 8, but how to get there? Would U guys be so kind to explain it? :)
Here is the code :

def power(x, y):
if y == 0:
return 1
else:
return x * power(x, y-1)

print(power(2, 3))

Answer 1

1)
x = 2 and y = 3
y != 0 so power(2, y-1)

2)
x = 2 and y = 2
y != 0 so power(2, y-1)

3)
x = 2 and y = 1
y != 0 so power(2, y-1)

4)
x = 2 and y = 0
y == 0 so return 1

In 3)
return 2 * 1 #2
In 2)
return 2 * 2 #4
In 1)
return 4 * 2 #8

Answer 2

Thanks :)