Alright, let's work through 7071 times 1390 step by step
7071 × 1390 = 1390 × (7071)
+ 1390 × 1 which equals 1390
+ 1390 × 70 giving us 97300
+ 1390 × 000 what gives us 0
+ 1390 × 7000 that results in 9730000

= 9828690
