No problem, we've got 3949 and 1180 to multiply
3949 × 1180 = 1180 × (3949)
+ 1180 × 9 what gives us 10620
+ 1180 × 40 producing 47200
+ 1180 × 900 giving us 1062000
+ 1180 × 3000 what gives us 3540000

= 4659820
