Alright, let's work through 71547674 times 83874751 step by step
71547674 × 83874751 = 83874751 × (71547674)
+ 83874751 × 4 resulting in 335499004
+ 83874751 × 70 giving us 5871232570
+ 83874751 × 600 that results in 50324850600
+ 83874751 × 7000 producing 587123257000
+ 83874751 × 40000 that equals 3354990040000
+ 83874751 × 500000 yielding 41937375500000
+ 83874751 × 1000000 that equals 83874751000000
+ 83874751 × 70000000 resulting in 5871232570000000

= 6001043341379174
