Alright, let's work through 72035682 times 57855717 step by step
72035682 × 57855717 = 57855717 × (72035682)
+ 57855717 × 2 what gives us 115711434
+ 57855717 × 80 what gives us 4628457360
+ 57855717 × 600 that results in 34713430200
+ 57855717 × 5000 resulting in 289278585000
+ 57855717 × 30000 that equals 1735671510000
+ 57855717 × 000000 that results in 0
+ 57855717 × 2000000 that equals 115711434000000
+ 57855717 × 70000000 yielding 4049900190000000

= 4167676031693994
