No problem, we've got 84226897 and 28745383 to multiply
84226897 × 28745383 = 28745383 × (84226897)
+ 28745383 × 7 that equals 201217681
+ 28745383 × 90 yielding 2587084470
+ 28745383 × 800 what gives us 22996306400
+ 28745383 × 6000 resulting in 172472298000
+ 28745383 × 20000 that is equal 574907660000
+ 28745383 × 200000 which equals 5749076600000
+ 28745383 × 4000000 which equals 114981532000000
+ 28745383 × 80000000 yielding 2299630640000000

= 2421134413166551
