No problem, we've got 89905873 and 88382186 to multiply
89905873 × 88382186 = 88382186 × (89905873)
+ 88382186 × 3 that results in 265146558
+ 88382186 × 70 which equals 6186753020
+ 88382186 × 800 that equals 70705748800
+ 88382186 × 5000 which equals 441910930000
+ 88382186 × 00000 that equals 0
+ 88382186 × 900000 that equals 79543967400000
+ 88382186 × 9000000 that results in 795439674000000
+ 88382186 × 80000000 that equals 7070574880000000

= 7946077589978378
