No problem, we've got 5214 and 4123 to multiply
5214 × 4123 = 4123 × (5214)
+ 4123 × 4 which equals 16492
+ 4123 × 10 yielding 41230
+ 4123 × 200 giving us 824600
+ 4123 × 5000 that results in 20615000

= 21497322
