add video

Author: ajm19826

math/grade5/long-division.html

@@ -77,7 +77,7 @@
     <h1>Lab Briefing: 2-Digit Divisors</h1>
     <p>Welcome, Engineer! Today we upscale our division processors to handle double-digit divisors. Watch this architectural overview before interacting with the system hardware.</p>
     <div class="video-container">
-      <iframe src="https://www.youtube.com/embed/HdU_rf7eMTg" frameborder="0" allowfullscreen></iframe>
+      <iframe src="https://www.youtube.com/embed/8Ft5iHhauJ0" frameborder="0" allowfullscreen></iframe>
     </div>
     <br><button class="btn" onclick="saveStepProgress(0, 1)">System Check Complete!</button>
   </div>