Alright, let's work through 7158 times 8905 step by step
7158 × 8905 = 8905 × (7158)
+ 8905 × 8 which equals 71240
+ 8905 × 50 what gives us 445250
+ 8905 × 100 resulting in 890500
+ 8905 × 7000 what gives us 62335000

= 63741990
