No problem, we've got 4423 and 9105 to multiply
4423 × 9105 = 9105 × (4423)
+ 9105 × 3 giving us 27315
+ 9105 × 20 yielding 182100
+ 9105 × 400 that is equal 3642000
+ 9105 × 4000 giving us 36420000

= 40271415
