mtg blocking with multiple creatures rules and first strike

[Boat]

how does blocking with multiple creatures work with 1st strike?

[Lakepirate]

• Player A attacks with a First Striker.
• Player B blocks with 2 creatures.
• Player A declares the order by which damage will be dealt (or order of blocking).
• First strike damage is dealt (lethal damage must be dealt to the first blocking creature before any damage can be dealt to the second... Unless the attacking creature has deathtouch.)
• If any creature is dealt lethal damage, it is moved to the graveyard before regular strike damage occurs.
• Regular strike damage. (Blockers that survived the first strike damage may now deal damage to the attacking creature.)