Alright, let's work through 48924274 times 81573298 step by step
48924274 × 81573298 = 81573298 × (48924274)
+ 81573298 × 4 yielding 326293192
+ 81573298 × 70 that results in 5710130860
+ 81573298 × 200 resulting in 16314659600
+ 81573298 × 4000 yielding 326293192000
+ 81573298 × 20000 that is equal 1631465960000
+ 81573298 × 900000 resulting in 73415968200000
+ 81573298 × 8000000 yielding 652586384000000
+ 81573298 × 40000000 yielding 3262931920000000

= 3990914382435652
