diff --git a/README.MD b/README.MD
index 37f5228..004cd7b 100644
--- a/README.MD
+++ b/README.MD
@@ -53,8 +53,8 @@ In base 2:
         00111001  (57)
         --------
         01010110  (86 * 2^0 =   86)
-       00000000   (86 * 2^1 =  172)
-      00000000    (86 * 2^2 =  344)
+       00000000   (86 * 2^1 =  172) <- wasted work, partial sum = 0
+      00000000    (86 * 2^2 =  344) <- wasted work, partial sum = 0
      01010110     (86 * 2^3 =  688)
     01010110      (86 * 2^4 = 1376)
    01010110       (86 * 2^5 = 2752)