Alright, let's work through 7155 times 4052 step by step
7155 × 4052 = 4052 × (7155)
+ 4052 × 5 that is equal 20260
+ 4052 × 50 yielding 202600
+ 4052 × 100 giving us 405200
+ 4052 × 7000 yielding 28364000

= 28992060
