Alright, let's work through 71128248 times 31217392 step by step
71128248 × 31217392 = 31217392 × (71128248)
+ 31217392 × 8 that equals 249739136
+ 31217392 × 40 what gives us 1248695680
+ 31217392 × 200 which equals 6243478400
+ 31217392 × 8000 resulting in 249739136000
+ 31217392 × 20000 that results in 624347840000
+ 31217392 × 100000 giving us 3121739200000
+ 31217392 × 1000000 that results in 31217392000000
+ 31217392 × 70000000 yielding 2185217440000000

= 2220438400089216
