No problem, we've got 1629 and 3802 to multiply
1629 × 3802 = 3802 × (1629)
+ 3802 × 9 what gives us 34218
+ 3802 × 20 giving us 76040
+ 3802 × 600 which equals 2281200
+ 3802 × 1000 yielding 3802000

= 6193458
