Russian language issues? Immigration and internet

I hope to be traveling west from Vladivostok by early June this year.My Russian language speaking is absent.I know the alphabet and a few words.It will be an adventure. My questions are:
1.When I fill out forms at the border crossings,do I always use English letters? Will I encounter times when I need to input on a keyboard that only has Cyrillic? How will the J and W of my VIN be displayed?
2.When I use wifi in hotels,I doubt I will see any English.How can I input passwords if required for a secure connection,?
Doug
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