No problem, we've got 80849894 and 47472412 to multiply
80849894 × 47472412 = 47472412 × (80849894)
+ 47472412 × 4 that is equal 189889648
+ 47472412 × 90 which equals 4272517080
+ 47472412 × 800 that equals 37977929600
+ 47472412 × 9000 yielding 427251708000
+ 47472412 × 40000 what gives us 1898896480000
+ 47472412 × 800000 giving us 37977929600000
+ 47472412 × 0000000 yielding 0
+ 47472412 × 80000000 that equals 3797792960000000

= 3838139478124328
