No problem, we've got 6689 and 6860 to multiply
6689 × 6860 = 6860 × (6689)
+ 6860 × 9 yielding 61740
+ 6860 × 80 what gives us 548800
+ 6860 × 600 that results in 4116000
+ 6860 × 6000 that results in 41160000

= 45886540
