Alright, let's work through 85132220 times 80648991 step by step
85132220 × 80648991 = 80648991 × (85132220)
+ 80648991 × 0 producing 0
+ 80648991 × 20 producing 1612979820
+ 80648991 × 200 yielding 16129798200
+ 80648991 × 2000 giving us 161297982000
+ 80648991 × 30000 that equals 2419469730000
+ 80648991 × 100000 which equals 8064899100000
+ 80648991 × 5000000 what gives us 403244955000000
+ 80648991 × 80000000 giving us 6451919280000000

= 6865827644590020
