Alright, let's work through 5249 times 9940 step by step
5249 × 9940 = 9940 × (5249)
+ 9940 × 9 yielding 89460
+ 9940 × 40 what gives us 397600
+ 9940 × 200 giving us 1988000
+ 9940 × 5000 giving us 49700000

= 52175060
