Alright, let's work through 3138 times 9876 step by step
3138 × 9876 = 9876 × (3138)
+ 9876 × 8 that equals 79008
+ 9876 × 30 that results in 296280
+ 9876 × 100 which equals 987600
+ 9876 × 3000 giving us 29628000

= 30990888
