Alright, let's work through 85197457 times 72949984 step by step
85197457 × 72949984 = 72949984 × (85197457)
+ 72949984 × 7 that results in 510649888
+ 72949984 × 50 that is equal 3647499200
+ 72949984 × 400 resulting in 29179993600
+ 72949984 × 7000 that equals 510649888000
+ 72949984 × 90000 giving us 6565498560000
+ 72949984 × 100000 giving us 7294998400000
+ 72949984 × 5000000 that results in 364749920000000
+ 72949984 × 80000000 which equals 5835998720000000

= 6215153124990688
