Alright, let's work through 7155 times 7745 step by step
7155 × 7745 = 7745 × (7155)
+ 7745 × 5 that results in 38725
+ 7745 × 50 which equals 387250
+ 7745 × 100 that results in 774500
+ 7745 × 7000 that equals 54215000

= 55415475
