No problem, we've got 3648 and 7900 to multiply
3648 × 7900 = 7900 × (3648)
+ 7900 × 8 that equals 63200
+ 7900 × 40 what gives us 316000
+ 7900 × 600 that equals 4740000
+ 7900 × 3000 yielding 23700000

= 28819200
