From bc434c1bd3cc043f988349c55a4e68d12aa17f34 Mon Sep 17 00:00:00 2001
From: Jagriti Joshi <jagritijoshi1994@gmail.com>
Date: Tue, 9 Jan 2018 15:48:11 +0530
Subject: [PATCH] Fix for #12877 as per @azeemism

---
 app/code/Magento/Backup/Model/Db.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/Backup/Model/Db.php b/app/code/Magento/Backup/Model/Db.php
index 776141249f92b..a629036155ea1 100644
--- a/app/code/Magento/Backup/Model/Db.php
+++ b/app/code/Magento/Backup/Model/Db.php
@@ -154,7 +154,7 @@ public function createBackup(\Magento\Framework\Backup\Db\BackupInterface $backu
 
                 if ($tableStatus->getDataLength() > self::BUFFER_LENGTH) {
                     if ($tableStatus->getAvgRowLength() < self::BUFFER_LENGTH) {
-                        $limit = floor(self::BUFFER_LENGTH / $tableStatus->getAvgRowLength());
+                        $limit = floor(self::BUFFER_LENGTH / max($tableStatus->getAvgRowLength(), 1));
                         $multiRowsLength = ceil($tableStatus->getRows() / $limit);
                     } else {
                         $limit = 1;