No problem, we've got 2870 and 1409 to multiply
2870 × 1409 = 1409 × (2870)
+ 1409 × 0 yielding 0
+ 1409 × 70 giving us 98630
+ 1409 × 800 what gives us 1127200
+ 1409 × 2000 giving us 2818000

= 4043830
