Alright, let's work through 1304 times 1139 step by step
1304 × 1139 = 1139 × (1304)
+ 1139 × 4 producing 4556
+ 1139 × 00 what gives us 0
+ 1139 × 300 giving us 341700
+ 1139 × 1000 that results in 1139000

= 1485256
