Alright, let's work through 7835 times 9972 step by step
7835 × 9972 = 9972 × (7835)
+ 9972 × 5 producing 49860
+ 9972 × 30 that results in 299160
+ 9972 × 800 yielding 7977600
+ 9972 × 7000 producing 69804000

= 78130620
