No problem, we've got 2460 and 6147 to multiply
2460 × 6147 = 6147 × (2460)
+ 6147 × 0 that equals 0
+ 6147 × 60 what gives us 368820
+ 6147 × 400 giving us 2458800
+ 6147 × 2000 yielding 12294000

= 15121620
