No problem, we've got 9375 and 4428 to multiply
9375 × 4428 = 4428 × (9375)
+ 4428 × 5 what gives us 22140
+ 4428 × 70 yielding 309960
+ 4428 × 300 that is equal 1328400
+ 4428 × 9000 resulting in 39852000

= 41512500
