No problem, we've got 3979 and 2315 to multiply
3979 × 2315 = 2315 × (3979)
+ 2315 × 9 yielding 20835
+ 2315 × 70 what gives us 162050
+ 2315 × 900 that results in 2083500
+ 2315 × 3000 producing 6945000

= 9211385
