Alright, let's work through 65476280 times 79532128 step by step
65476280 × 79532128 = 79532128 × (65476280)
+ 79532128 × 0 what gives us 0
+ 79532128 × 80 which equals 6362570240
+ 79532128 × 200 which equals 15906425600
+ 79532128 × 6000 what gives us 477192768000
+ 79532128 × 70000 resulting in 5567248960000
+ 79532128 × 400000 that equals 31812851200000
+ 79532128 × 5000000 that is equal 397660640000000
+ 79532128 × 60000000 giving us 4771927680000000

= 5207467881923840
