Let's calculate 1788 x 1720
1788 × 1720 = 1720 × (1788)
+ 1720 × 8 that equals 13760
+ 1720 × 80 which equals 137600
+ 1720 × 700 what gives us 1204000
+ 1720 × 1000 that results in 1720000

= 3075360
