Alright, let's work through 1139 times 4250 step by step
1139 × 4250 = 4250 × (1139)
+ 4250 × 9 resulting in 38250
+ 4250 × 30 yielding 127500
+ 4250 × 100 giving us 425000
+ 4250 × 1000 giving us 4250000

= 4840750
