No problem, we've got 5456 and 8420 to multiply
5456 × 8420 = 8420 × (5456)
+ 8420 × 6 what gives us 50520
+ 8420 × 50 producing 421000
+ 8420 × 400 that results in 3368000
+ 8420 × 5000 what gives us 42100000

= 45939520
