No problem, we've got 3871 and 5419 to multiply
3871 × 5419 = 5419 × (3871)
+ 5419 × 1 giving us 5419
+ 5419 × 70 that results in 379330
+ 5419 × 800 resulting in 4335200
+ 5419 × 3000 yielding 16257000

= 20976949
