No problem, we've got 2520 and 6984 to multiply
2520 × 6984 = 6984 × (2520)
+ 6984 × 0 that equals 0
+ 6984 × 20 giving us 139680
+ 6984 × 500 producing 3492000
+ 6984 × 2000 producing 13968000

= 17599680
