Alright, let's work through 7947 times 4987 step by step
7947 × 4987 = 4987 × (7947)
+ 4987 × 7 giving us 34909
+ 4987 × 40 resulting in 199480
+ 4987 × 900 that is equal 4488300
+ 4987 × 7000 producing 34909000

= 39631689
