No problem, we've got 3821 and 6423 to multiply
3821 × 6423 = 6423 × (3821)
+ 6423 × 1 giving us 6423
+ 6423 × 20 resulting in 128460
+ 6423 × 800 what gives us 5138400
+ 6423 × 3000 what gives us 19269000

= 24542283
