Alright, let's work through 80089046 times 997171 step by step
80089046 × 997171 = 997171 × (80089046)
+ 997171 × 6 which equals 5983026
+ 997171 × 40 giving us 39886840
+ 997171 × 000 what gives us 0
+ 997171 × 9000 which equals 8974539000
+ 997171 × 80000 that is equal 79773680000
+ 997171 × 000000 that is equal 0
+ 997171 × 0000000 resulting in 0
+ 997171 × 80000000 resulting in 79773680000000

= 79862474088866
