Alright, let's work through 4212 times 7578 step by step
4212 × 7578 = 7578 × (4212)
+ 7578 × 2 giving us 15156
+ 7578 × 10 yielding 75780
+ 7578 × 200 which equals 1515600
+ 7578 × 4000 yielding 30312000

= 31918536
