Alright, let's work through 71733879 times 48578251 step by step
71733879 × 48578251 = 48578251 × (71733879)
+ 48578251 × 9 that is equal 437204259
+ 48578251 × 70 that results in 3400477570
+ 48578251 × 800 giving us 38862600800
+ 48578251 × 3000 resulting in 145734753000
+ 48578251 × 30000 which equals 1457347530000
+ 48578251 × 700000 that equals 34004775700000
+ 48578251 × 1000000 which equals 48578251000000
+ 48578251 × 70000000 that is equal 3400477570000000

= 3484706379265629
