Alright, let's work through 7005 times 7770 step by step
7005 × 7770 = 7770 × (7005)
+ 7770 × 5 resulting in 38850
+ 7770 × 00 that is equal 0
+ 7770 × 000 producing 0
+ 7770 × 7000 which equals 54390000

= 54428850
