No problem, we've got 5340 and 8456 to multiply
5340 × 8456 = 8456 × (5340)
+ 8456 × 0 what gives us 0
+ 8456 × 40 that is equal 338240
+ 8456 × 300 producing 2536800
+ 8456 × 5000 giving us 42280000

= 45155040
