No problem, we've got 85802298 and 65760156 to multiply
85802298 × 65760156 = 65760156 × (85802298)
+ 65760156 × 8 what gives us 526081248
+ 65760156 × 90 giving us 5918414040
+ 65760156 × 200 giving us 13152031200
+ 65760156 × 2000 what gives us 131520312000
+ 65760156 × 00000 which equals 0
+ 65760156 × 800000 that results in 52608124800000
+ 65760156 × 5000000 producing 328800780000000
+ 65760156 × 80000000 resulting in 5260812480000000

= 5642372501638488
