Alright, let's work through 7150 times 1139 step by step
7150 × 1139 = 1139 × (7150)
+ 1139 × 0 giving us 0
+ 1139 × 50 what gives us 56950
+ 1139 × 100 which equals 113900
+ 1139 × 7000 which equals 7973000

= 8143850
