No problem, we've got 4543 and 4151 to multiply
4543 × 4151 = 4151 × (4543)
+ 4151 × 3 what gives us 12453
+ 4151 × 40 what gives us 166040
+ 4151 × 500 what gives us 2075500
+ 4151 × 4000 that results in 16604000

= 18857993
