Alright, let's work through 77170278 times 51710532 step by step
77170278 × 51710532 = 51710532 × (77170278)
+ 51710532 × 8 which equals 413684256
+ 51710532 × 70 resulting in 3619737240
+ 51710532 × 200 resulting in 10342106400
+ 51710532 × 0000 that results in 0
+ 51710532 × 70000 that results in 3619737240000
+ 51710532 × 100000 producing 5171053200000
+ 51710532 × 7000000 which equals 361973724000000
+ 51710532 × 70000000 giving us 3619737240000000

= 3990516129967896
