No problem, we've got 8840 and 8729 to multiply
8840 × 8729 = 8729 × (8840)
+ 8729 × 0 what gives us 0
+ 8729 × 40 resulting in 349160
+ 8729 × 800 giving us 6983200
+ 8729 × 8000 giving us 69832000

= 77164360
