Alright, let's work through 67434255 times 63278998 step by step
67434255 × 63278998 = 63278998 × (67434255)
+ 63278998 × 5 giving us 316394990
+ 63278998 × 50 that results in 3163949900
+ 63278998 × 200 what gives us 12655799600
+ 63278998 × 4000 yielding 253115992000
+ 63278998 × 30000 which equals 1898369940000
+ 63278998 × 400000 that is equal 25311599200000
+ 63278998 × 7000000 that is equal 442952986000000
+ 63278998 × 60000000 resulting in 3796739880000000

= 4267172087276490
