Alright, let's work through 80980925 times 9235929 step by step
80980925 × 9235929 = 9235929 × (80980925)
+ 9235929 × 5 giving us 46179645
+ 9235929 × 20 resulting in 184718580
+ 9235929 × 900 what gives us 8312336100
+ 9235929 × 0000 which equals 0
+ 9235929 × 80000 what gives us 738874320000
+ 9235929 × 900000 yielding 8312336100000
+ 9235929 × 0000000 resulting in 0
+ 9235929 × 80000000 which equals 738874320000000

= 747934073654325
