Alright, let's work through 2972 times 5121 step by step
2972 × 5121 = 5121 × (2972)
+ 5121 × 2 resulting in 10242
+ 5121 × 70 that results in 358470
+ 5121 × 900 giving us 4608900
+ 5121 × 2000 which equals 10242000

= 15219612
