No problem, we've got 2175 and 3664 to multiply
2175 × 3664 = 3664 × (2175)
+ 3664 × 5 what gives us 18320
+ 3664 × 70 producing 256480
+ 3664 × 100 that results in 366400
+ 3664 × 2000 giving us 7328000

= 7969200
