No problem, we've got 1644 and 6719 to multiply
1644 × 6719 = 6719 × (1644)
+ 6719 × 4 giving us 26876
+ 6719 × 40 yielding 268760
+ 6719 × 600 yielding 4031400
+ 6719 × 1000 yielding 6719000

= 11046036
