Alright, let's work through 83889473 times 35449652 step by step
83889473 × 35449652 = 35449652 × (83889473)
+ 35449652 × 3 producing 106348956
+ 35449652 × 70 producing 2481475640
+ 35449652 × 400 producing 14179860800
+ 35449652 × 9000 yielding 319046868000
+ 35449652 × 80000 that is equal 2835972160000
+ 35449652 × 800000 resulting in 28359721600000
+ 35449652 × 3000000 giving us 106348956000000
+ 35449652 × 80000000 yielding 2835972160000000

= 2973852624313396
