How to Install HTML Code Widget on Your WordPress.com

Step 1 - On your Dashboard, press Appearance and then Widgets.

Step 2 - Find the Text widget, click on it and drag it to the sidebar.

Step 3 - Place the Text widget on the sidebars.

Step 4 - The Text widget will expand. Paste the HMTL code on the text box. If you like type a Title for the widget. Press the Save button. Your widget is ready.