Hebrews 1:8-9, the quote from Psalms 45:6-7, says nothing about Jesus being divine. As in Psalms, the context is about a human ruler (most probably King David) anointed by God. As with David as his son, so with Jesus, his true begotten Son. As David is not divine, the same as Christ. Both David and Jesus are subordinate to their maker and their Father, the LORD God Almighty.
This scripture as in many others, never intends to elevate Christ as divine, the same as his Father, as many desperately wishes it did to fit into their self-contrived false truth about Christ, being equal to his Father, and God himself. This scripture is meant to show that Jesus Christ is now above all men and even angels, who rules them from a special place or throne given to him by his, and our Father. Verses 8 and 9 explicitly states the roles and basic differences: that simply God is the Father of Christ, his true Son. This is a very simple thought process to understand and internalize and trust as the truth.
Reading the entire Chapter One of Hebrews clearly makes my points much more clearer, as its context. God the LORD is always spoken of as the creator of all things, the only one in charge, the only one that makes all the decisions and thus by implication, is the only deity, and never his Son, or anyone else.
Blessings,
APAK