No problem, we've got 1684 and 5587 to multiply
1684 × 5587 = 5587 × (1684)
+ 5587 × 4 that results in 22348
+ 5587 × 80 giving us 446960
+ 5587 × 600 resulting in 3352200
+ 5587 × 1000 yielding 5587000

= 9408508
