No problem, we've got 1644 and 4108 to multiply
1644 × 4108 = 4108 × (1644)
+ 4108 × 4 producing 16432
+ 4108 × 40 yielding 164320
+ 4108 × 600 resulting in 2464800
+ 4108 × 1000 that results in 4108000

= 6753552
