diff --git a/tests/09_long.py b/tests/09_long.py
index 28d383b4..8f6d0417 100644
--- a/tests/09_long.py
+++ b/tests/09_long.py
@@ -14,7 +14,8 @@ assert -a == -2
 assert 1 + a == 3L
 assert 1 - a == -1L
 assert 2 * a == 4L
-assert 2L**500 // 3333L
+assert 10000000000000000000000L // 3333L == 3000300030003000300L
+assert 10000000000000000000000L % 3333L == 100L
 
 # __lshift__ and __rshift__
 for i in range(29):