No problem, we've got 3878 and 2610 to multiply
3878 × 2610 = 2610 × (3878)
+ 2610 × 8 that is equal 20880
+ 2610 × 70 that is equal 182700
+ 2610 × 800 yielding 2088000
+ 2610 × 3000 what gives us 7830000

= 10121580
