No problem, we've got 6378 and 877 to multiply
6378 × 877 = 877 × (6378)
+ 877 × 8 that equals 7016
+ 877 × 70 yielding 61390
+ 877 × 300 that equals 263100
+ 877 × 6000 that is equal 5262000

= 5593506
