No problem, we've got 80194792 and 47807477 to multiply
80194792 × 47807477 = 47807477 × (80194792)
+ 47807477 × 2 yielding 95614954
+ 47807477 × 90 that is equal 4302672930
+ 47807477 × 700 giving us 33465233900
+ 47807477 × 4000 that results in 191229908000
+ 47807477 × 90000 that equals 4302672930000
+ 47807477 × 100000 giving us 4780747700000
+ 47807477 × 0000000 yielding 0
+ 47807477 × 80000000 that equals 3824598160000000

= 3833910674059784
