No problem, we've got 2907 and 864 to multiply
2907 × 864 = 864 × (2907)
+ 864 × 7 giving us 6048
+ 864 × 00 that equals 0
+ 864 × 900 what gives us 777600
+ 864 × 2000 what gives us 1728000

= 2511648
