Alright, let's work through 71183634 times 69860657 step by step
71183634 × 69860657 = 69860657 × (71183634)
+ 69860657 × 4 yielding 279442628
+ 69860657 × 30 producing 2095819710
+ 69860657 × 600 yielding 41916394200
+ 69860657 × 3000 that results in 209581971000
+ 69860657 × 80000 giving us 5588852560000
+ 69860657 × 100000 that equals 6986065700000
+ 69860657 × 1000000 what gives us 69860657000000
+ 69860657 × 70000000 that is equal 4890245990000000

= 4972935438887538
