No problem, we've got 8378 and 401 to multiply
8378 × 401 = 401 × (8378)
+ 401 × 8 what gives us 3208
+ 401 × 70 that is equal 28070
+ 401 × 300 that is equal 120300
+ 401 × 8000 that is equal 3208000

= 3359578
