No problem, we've got 78223290 and 23479705 to multiply
78223290 × 23479705 = 23479705 × (78223290)
+ 23479705 × 0 that is equal 0
+ 23479705 × 90 what gives us 2113173450
+ 23479705 × 200 that results in 4695941000
+ 23479705 × 3000 which equals 70439115000
+ 23479705 × 20000 producing 469594100000
+ 23479705 × 200000 resulting in 4695941000000
+ 23479705 × 8000000 giving us 187837640000000
+ 23479705 × 70000000 resulting in 1643579350000000

= 1836659773329450
