No problem, we've got 2987 and 9871 to multiply
2987 × 9871 = 9871 × (2987)
+ 9871 × 7 what gives us 69097
+ 9871 × 80 yielding 789680
+ 9871 × 900 that equals 8883900
+ 9871 × 2000 what gives us 19742000

= 29484677
