Alright, let's work through 7155 times 1389 step by step
7155 × 1389 = 1389 × (7155)
+ 1389 × 5 which equals 6945
+ 1389 × 50 yielding 69450
+ 1389 × 100 yielding 138900
+ 1389 × 7000 that results in 9723000

= 9938295
