No problem, we've got 4680 and 4570 to multiply
4680 × 4570 = 4570 × (4680)
+ 4570 × 0 resulting in 0
+ 4570 × 80 giving us 365600
+ 4570 × 600 that equals 2742000
+ 4570 × 4000 yielding 18280000

= 21387600
