No problem, we've got 1139 and 3339 to multiply
1139 × 3339 = 3339 × (1139)
+ 3339 × 9 that is equal 30051
+ 3339 × 30 what gives us 100170
+ 3339 × 100 what gives us 333900
+ 3339 × 1000 that is equal 3339000

= 3803121
