Alright, let's work through 98397189 times 74751931 step by step
98397189 × 74751931 = 74751931 × (98397189)
+ 74751931 × 9 resulting in 672767379
+ 74751931 × 80 resulting in 5980154480
+ 74751931 × 100 yielding 7475193100
+ 74751931 × 7000 yielding 523263517000
+ 74751931 × 90000 producing 6727673790000
+ 74751931 × 300000 producing 22425579300000
+ 74751931 × 8000000 that is equal 598015448000000
+ 74751931 × 90000000 what gives us 6727673790000000

= 7355379882721959
