python error for large number mod operator -

i have data looks :

353: 340122810048577428 354: 363117512048110005 355: 387632532919029223 356: 413766180933342362 357: 441622981929358437 358: 471314064268398780 359: 502957566506000020 360: 536679070310691121 361: 572612058898037559 362: 610898403751884101 363: 651688879997206959 

i trying find index divisible 1 million.

index = my_data[:,0] values = my_data[:,1]  k = 0 in values:    k += 1    if % 1000000 == 0 :       print       break  print k-1 

for code getting output :

5.02957566506e+17 359 

but value @ index 359 502957566506000020 last 6 digits not 0 . mistake making here ?

don't use index variables i in python. in 21st century.

s = """353: 340122810048577428 354: 363117512048110005 355: 387632532919029223 356: 413766180933342362 357: 441622981929358437 358: 471314064268398780 359: 502957566506000020 360: 536679070310691121 361: 572612058898037559 362: 610898403751884101 363: 651688879997206959"""   line in s.split("\n"):     k, v = line.split(":")     if int(v.strip()) % 1000000 == 0:         print(k) 

output: nothing.