We're going to solve 7840 multiplied by 3138
7840 × 3138 = 3138 × (7840)
+ 3138 × 0 that results in 0
+ 3138 × 40 yielding 125520
+ 3138 × 800 that is equal 2510400
+ 3138 × 7000 that is equal 21966000

= 24601920
