No problem, we've got 8878 and 5685 to multiply
8878 × 5685 = 5685 × (8878)
+ 5685 × 8 what gives us 45480
+ 5685 × 70 which equals 397950
+ 5685 × 800 which equals 4548000
+ 5685 × 8000 what gives us 45480000

= 50471430
