No problem, we've got 4534 and 4215 to multiply
4534 × 4215 = 4215 × (4534)
+ 4215 × 4 giving us 16860
+ 4215 × 30 that results in 126450
+ 4215 × 500 producing 2107500
+ 4215 × 4000 that equals 16860000

= 19110810
