Searching for code is crucial to understand how something works. As such there's a number of a ways to do it

• SNC Guru's "Find All System References to a Specific Record"
• SN Pro Tip's, "Locate any record in any table by sysid"
• GarretNow's "Developer Search"
• Servicenow's Studio's Code Search as described by Goran Lundqvist

One thing none of these do is find Workflow Activities using that value.

Navigating to your /sys_variable_value_list.do?sysparm_query=valueLIKEa033355d95364600ab0db5e2bc674c27 will search workflow activities for workflow "variables" containing that sys_id, but you may set have things with the display value, so you may have a to do some extra or statements in there to find those. Something to keep in mind, this table has no idea what workflow activities are on "published" workflows, so that is frustrating but it will at least give you a direction of what activities need updating and you can see what workflows those are associated to.

Thanks Michael Domke for sharing this. I've referenced your post on the community numerous times with colleagues.