No problem, we've got 3647 and 5824 to multiply
3647 × 5824 = 5824 × (3647)
+ 5824 × 7 giving us 40768
+ 5824 × 40 which equals 232960
+ 5824 × 600 that results in 3494400
+ 5824 × 3000 yielding 17472000

= 21240128
