Alright, let's work through 7251 times 120 step by step
7251 × 120 = 120 × (7251)
+ 120 × 1 what gives us 120
+ 120 × 50 giving us 6000
+ 120 × 200 what gives us 24000
+ 120 × 7000 producing 840000

= 870120
