Alright, let's work through 5155 times 1447 step by step
5155 × 1447 = 1447 × (5155)
+ 1447 × 5 that is equal 7235
+ 1447 × 50 which equals 72350
+ 1447 × 100 which equals 144700
+ 1447 × 5000 giving us 7235000

= 7459285
