No problem, we've got 3580 and 3623 to multiply
3580 × 3623 = 3623 × (3580)
+ 3623 × 0 giving us 0
+ 3623 × 80 giving us 289840
+ 3623 × 500 resulting in 1811500
+ 3623 × 3000 giving us 10869000

= 12970340
