No problem, we've got 3494 and 5240 to multiply
3494 × 5240 = 5240 × (3494)
+ 5240 × 4 which equals 20960
+ 5240 × 90 that equals 471600
+ 5240 × 400 which equals 2096000
+ 5240 × 3000 resulting in 15720000

= 18308560
