No problem, we've got 8377 and 6402 to multiply
8377 × 6402 = 6402 × (8377)
+ 6402 × 7 resulting in 44814
+ 6402 × 70 what gives us 448140
+ 6402 × 300 that is equal 1920600
+ 6402 × 8000 that is equal 51216000

= 53629554
