No problem, we've got 1836 and 6407 to multiply
1836 × 6407 = 6407 × (1836)
+ 6407 × 6 yielding 38442
+ 6407 × 30 which equals 192210
+ 6407 × 800 which equals 5125600
+ 6407 × 1000 which equals 6407000

= 11763252
