No problem, we've got 8780 and 8416 to multiply
8780 × 8416 = 8416 × (8780)
+ 8416 × 0 which equals 0
+ 8416 × 80 what gives us 673280
+ 8416 × 700 yielding 5891200
+ 8416 × 8000 yielding 67328000

= 73892480
