No problem, we've got 2907 and 1231 to multiply
2907 × 1231 = 1231 × (2907)
+ 1231 × 7 yielding 8617
+ 1231 × 00 what gives us 0
+ 1231 × 900 that equals 1107900
+ 1231 × 2000 producing 2462000

= 3578517
