.......................
345 - (x : 78) = 89
х : 78 = 345 - 89
х : 78 = 256
х = 256 • 78
х = 19968
—————————
345 - (19968 : 78) = 89
.......................
345 - (x : 78) = 89
х : 78 = 345 - 89
х : 78 = 256
х = 256 • 78
х = 19968
—————————
345 - (19968 : 78) = 89