Alright, let's work through 80956954 times 61869671 step by step
80956954 × 61869671 = 61869671 × (80956954)
+ 61869671 × 4 that equals 247478684
+ 61869671 × 50 yielding 3093483550
+ 61869671 × 900 what gives us 55682703900
+ 61869671 × 6000 which equals 371218026000
+ 61869671 × 50000 that equals 3093483550000
+ 61869671 × 900000 producing 55682703900000
+ 61869671 × 0000000 that results in 0
+ 61869671 × 80000000 giving us 4949573680000000

= 5008780109142134
