No problem, we've got 9834 and 4123 to multiply
9834 × 4123 = 4123 × (9834)
+ 4123 × 4 which equals 16492
+ 4123 × 30 what gives us 123690
+ 4123 × 800 giving us 3298400
+ 4123 × 9000 producing 37107000

= 40545582
