Let's calculate 3497 x 2220
3497 × 2220 = 2220 × (3497)
+ 2220 × 7 which equals 15540
+ 2220 × 90 that results in 199800
+ 2220 × 400 resulting in 888000
+ 2220 × 3000 resulting in 6660000

= 7763340
