Alright, let's work through 1237 times 2507 step by step
1237 × 2507 = 2507 × (1237)
+ 2507 × 7 giving us 17549
+ 2507 × 30 giving us 75210
+ 2507 × 200 producing 501400
+ 2507 × 1000 resulting in 2507000

= 3101159
