No problem, we've got 3663 and 1940 to multiply
3663 × 1940 = 1940 × (3663)
+ 1940 × 3 which equals 5820
+ 1940 × 60 that equals 116400
+ 1940 × 600 what gives us 1164000
+ 1940 × 3000 which equals 5820000

= 7106220
