Alright, let's work through 1249 times 5083 step by step
1249 × 5083 = 5083 × (1249)
+ 5083 × 9 that equals 45747
+ 5083 × 40 resulting in 203320
+ 5083 × 200 which equals 1016600
+ 5083 × 1000 what gives us 5083000

= 6348667
