Let's calculate 3155 x 6531
3155 × 6531 = 6531 × (3155)
+ 6531 × 5 that results in 32655
+ 6531 × 50 which equals 326550
+ 6531 × 100 that results in 653100
+ 6531 × 3000 resulting in 19593000

= 20605305
