No problem, we've got 83747529 and 42069125 to multiply
83747529 × 42069125 = 42069125 × (83747529)
+ 42069125 × 9 resulting in 378622125
+ 42069125 × 20 that is equal 841382500
+ 42069125 × 500 giving us 21034562500
+ 42069125 × 7000 producing 294483875000
+ 42069125 × 40000 what gives us 1682765000000
+ 42069125 × 700000 which equals 29448387500000
+ 42069125 × 3000000 that is equal 126207375000000
+ 42069125 × 80000000 which equals 3365530000000000

= 3523185265942125
