No problem, we've got 6377 and 1821 to multiply
6377 × 1821 = 1821 × (6377)
+ 1821 × 7 that is equal 12747
+ 1821 × 70 producing 127470
+ 1821 × 300 that equals 546300
+ 1821 × 6000 resulting in 10926000

= 11612517
