Alright, let's work through 9807 times 3878 step by step
9807 × 3878 = 3878 × (9807)
+ 3878 × 7 resulting in 27146
+ 3878 × 00 giving us 0
+ 3878 × 800 what gives us 3102400
+ 3878 × 9000 what gives us 34902000

= 38031546
