diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -38,7 +38,7 @@
         cycle1, cycle2 = ct + 1 - cycleStart, len(rec) - 1 - track[ptr]
         rest = n1 - cycleStart
 
-        rem = cycleStart + self.calculateRemainder(rest, cycle1)
+        rem = cycleStart + rest % cycle1
 
         while rec[ptr2] <= rem:
             ptr2 += 1
