Alright, let's work through 3972 times 7973 step by step
3972 × 7973 = 7973 × (3972)
+ 7973 × 2 giving us 15946
+ 7973 × 70 resulting in 558110
+ 7973 × 900 yielding 7175700
+ 7973 × 3000 giving us 23919000

= 31668756
