乘法持久性程序不起作用

Question

This program is supposed to find the multiplicative persistence of an input number but I can't get it to work. It simply closes the window when open it. I can't think of anything that's wrong here.

import time
a = int(input("Enter the number"))
s = 1
n = 0
while (a>0):
    while (a>0):
        b = a%10
        s = s*b
        a = a/10
    n = n+1
    a = s
    print(s)
time.sleep(10)

input = 277777788888899 
expected output = 277777788888899 4996238671872 438939648 4478976 338688 27648 2688 768 336 54 20 0 
current output = 0 

Answer 1

Nvm I got it working

import time

a = 277777788888899
s = 1
n = 0
print(a)
while (a>0):
    while (a>0):
        b = a%10
        s = s*b
        a = a//10
    n = n+1
    a = s
    print(s)
    s = 1 
n = str(n)
print('the multiplicative persistence is '+n)

time.sleep(10)

The operator for integer division is apparently // and not /. Welp C++ habits die hard.