No problem, we've got 7889 and 3915 to multiply
7889 × 3915 = 3915 × (7889)
+ 3915 × 9 yielding 35235
+ 3915 × 80 which equals 313200
+ 3915 × 800 what gives us 3132000
+ 3915 × 7000 yielding 27405000

= 30885435
