Alright, let's work through 85054697 times 88639955 step by step
85054697 × 88639955 = 88639955 × (85054697)
+ 88639955 × 7 that is equal 620479685
+ 88639955 × 90 what gives us 7977595950
+ 88639955 × 600 yielding 53183973000
+ 88639955 × 4000 giving us 354559820000
+ 88639955 × 50000 that equals 4431997750000
+ 88639955 × 000000 that results in 0
+ 88639955 × 5000000 producing 443199775000000
+ 88639955 × 80000000 that results in 7091196400000000

= 7539244514618635
