We're going to solve 4140 multiplied by 8107
4140 × 8107 = 8107 × (4140)
+ 8107 × 0 resulting in 0
+ 8107 × 40 which equals 324280
+ 8107 × 100 what gives us 810700
+ 8107 × 4000 that is equal 32428000

= 33562980
