Alright, let's work through 7136 times 9063 step by step
7136 × 9063 = 9063 × (7136)
+ 9063 × 6 that results in 54378
+ 9063 × 30 giving us 271890
+ 9063 × 100 giving us 906300
+ 9063 × 7000 producing 63441000

= 64673568
