No problem, we've got 3870 and 1205 to multiply
3870 × 1205 = 1205 × (3870)
+ 1205 × 0 producing 0
+ 1205 × 70 that is equal 84350
+ 1205 × 800 which equals 964000
+ 1205 × 3000 yielding 3615000

= 4663350
