Alright, let's work through 8858 times 660 step by step
8858 × 660 = 660 × (8858)
+ 660 × 8 that is equal 5280
+ 660 × 50 yielding 33000
+ 660 × 800 that equals 528000
+ 660 × 8000 giving us 5280000

= 5846280
