We're going to solve 3385 multiplied by 7140
3385 × 7140 = 7140 × (3385)
+ 7140 × 5 giving us 35700
+ 7140 × 80 that is equal 571200
+ 7140 × 300 that results in 2142000
+ 7140 × 3000 producing 21420000

= 24168900
