No problem, we've got 3690 and 408 to multiply
3690 × 408 = 408 × (3690)
+ 408 × 0 that is equal 0
+ 408 × 90 that equals 36720
+ 408 × 600 what gives us 244800
+ 408 × 3000 yielding 1224000

= 1505520
