No problem, we've got 8427 and 777 to multiply
8427 × 777 = 777 × (8427)
+ 777 × 7 resulting in 5439
+ 777 × 20 that equals 15540
+ 777 × 400 that is equal 310800
+ 777 × 8000 that equals 6216000

= 6547779
