No problem, we've got 1604 and 6617 to multiply
1604 × 6617 = 6617 × (1604)
+ 6617 × 4 giving us 26468
+ 6617 × 00 resulting in 0
+ 6617 × 600 resulting in 3970200
+ 6617 × 1000 giving us 6617000

= 10613668
