No problem, we've got 4115 and 5312 to multiply
4115 × 5312 = 5312 × (4115)
+ 5312 × 5 producing 26560
+ 5312 × 10 producing 53120
+ 5312 × 100 that equals 531200
+ 5312 × 4000 what gives us 21248000

= 21858880
