Quick one: PowerShell scripting help. Enter a value into a (Javascript) website field, 'click' button, and collect output as string.

Need some help with a step in PowerShell. I have an array of few email addresses, which I strip the {username}@ prefix from to get a list of email domains. i.e. input collection is an array I need to take array member (e.g. "[login to view URL]") and run it through the [login to view URL] to get the microsoft Tenant ID back (as $TenantID). The 'human' steps on the website are: 1) type/paste a value (and I think the field might be called #o-ui-field-1-input), 2) click the 'Find my tenant ID' button , 3) copy the returned value. Should be just a few minutes work for someone who knows their way around this type of work (but it has me confused!). I can 'walk' through the array of domains just fine - just need this processing step to help me out. i.e. you can make a function which accepts domain as a parameter, then I can reuse it for each. Please don't respond to this Project if you do not know how to do it already. Thanks everyone.