Alright, let's work through 7141 times 3900 step by step
7141 × 3900 = 3900 × (7141)
+ 3900 × 1 that is equal 3900
+ 3900 × 40 that is equal 156000
+ 3900 × 100 resulting in 390000
+ 3900 × 7000 that results in 27300000

= 27849900
