Alright, let's work through 1212 times 6243 step by step
1212 × 6243 = 6243 × (1212)
+ 6243 × 2 that equals 12486
+ 6243 × 10 giving us 62430
+ 6243 × 200 that is equal 1248600
+ 6243 × 1000 that equals 6243000

= 7566516
