Alright, let's work through 84200947 times 98067132 step by step
84200947 × 98067132 = 98067132 × (84200947)
+ 98067132 × 7 yielding 686469924
+ 98067132 × 40 that is equal 3922685280
+ 98067132 × 900 which equals 88260418800
+ 98067132 × 0000 that is equal 0
+ 98067132 × 00000 that is equal 0
+ 98067132 × 200000 what gives us 19613426400000
+ 98067132 × 4000000 yielding 392268528000000
+ 98067132 × 80000000 what gives us 7845370560000000

= 8257345383974004
