Alright, let's work through 27768825 times 78994988 step by step
27768825 × 78994988 = 78994988 × (27768825)
+ 78994988 × 5 that is equal 394974940
+ 78994988 × 20 producing 1579899760
+ 78994988 × 800 which equals 63195990400
+ 78994988 × 8000 that results in 631959904000
+ 78994988 × 60000 that is equal 4739699280000
+ 78994988 × 700000 yielding 55296491600000
+ 78994988 × 7000000 that is equal 552964916000000
+ 78994988 × 20000000 giving us 1579899760000000

= 2193597997649100
