No problem, we've got 2472 and 1980 to multiply
2472 × 1980 = 1980 × (2472)
+ 1980 × 2 what gives us 3960
+ 1980 × 70 producing 138600
+ 1980 × 400 what gives us 792000
+ 1980 × 2000 which equals 3960000

= 4894560
