No problem, we've got 5144 and 3912 to multiply
5144 × 3912 = 3912 × (5144)
+ 3912 × 4 that results in 15648
+ 3912 × 40 that is equal 156480
+ 3912 × 100 giving us 391200
+ 3912 × 5000 what gives us 19560000

= 20123328
