No problem, we've got 71667870 and 71840687 to multiply
71667870 × 71840687 = 71840687 × (71667870)
+ 71840687 × 0 that results in 0
+ 71840687 × 70 resulting in 5028848090
+ 71840687 × 800 resulting in 57472549600
+ 71840687 × 7000 that equals 502884809000
+ 71840687 × 60000 producing 4310441220000
+ 71840687 × 600000 what gives us 43104412200000
+ 71840687 × 1000000 which equals 71840687000000
+ 71840687 × 70000000 that results in 5028848090000000

= 5148669016626690
