No problem, we've got 2490 and 7989 to multiply
2490 × 7989 = 7989 × (2490)
+ 7989 × 0 which equals 0
+ 7989 × 90 yielding 719010
+ 7989 × 400 yielding 3195600
+ 7989 × 2000 that results in 15978000

= 19892610
