Alright, let's work through 5201 times 8140 step by step
5201 × 8140 = 8140 × (5201)
+ 8140 × 1 producing 8140
+ 8140 × 00 what gives us 0
+ 8140 × 200 that equals 1628000
+ 8140 × 5000 resulting in 40700000

= 42336140
