No problem, we've got 8557 and 5780 to multiply
8557 × 5780 = 5780 × (8557)
+ 5780 × 7 what gives us 40460
+ 5780 × 50 what gives us 289000
+ 5780 × 500 resulting in 2890000
+ 5780 × 8000 yielding 46240000

= 49459460
