No problem, we've got 6802 and 7770 to multiply
6802 × 7770 = 7770 × (6802)
+ 7770 × 2 what gives us 15540
+ 7770 × 00 yielding 0
+ 7770 × 800 producing 6216000
+ 7770 × 6000 yielding 46620000

= 52851540
