Alright, let's work through 1245 times 7312 step by step
1245 × 7312 = 7312 × (1245)
+ 7312 × 5 yielding 36560
+ 7312 × 40 resulting in 292480
+ 7312 × 200 that equals 1462400
+ 7312 × 1000 giving us 7312000

= 9103440
