Let's calculate 3522 x 7248
3522 × 7248 = 7248 × (3522)
+ 7248 × 2 which equals 14496
+ 7248 × 20 that results in 144960
+ 7248 × 500 which equals 3624000
+ 7248 × 3000 giving us 21744000

= 25527456
