We look at the division of 858722 by 426 
Our goal is to divide 858722 by 426.

Going ahead to step 1:
8 divided by 426 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 426

Step 2:
426 goes into 85 0 times with a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Include the next digit (8) from the dividend after 85, then repeat: 858 / 426

Step 3:
426 goes into 858 2 times with a remainder of 6.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 852 from 858 leaves us with 6.
Grab the next digit (7) from the dividend, add it to 6, then carry on: 67 / 426

Let's proceed to step 4:
426 goes into 67 0 times with a remainder of 67.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we take 0 away from 67, we end up with 67.
Include the next digit (2) from the dividend after 67, then repeat: 672 / 426

Going ahead to step 5:
426 goes into 672 1 times with a remainder of 246.
Put 1 as the next digit of the answer. 
Result so far: 201.0
Deduct 426 from 672 and we're left with 246.
Include the next digit (2) from the dividend after 246, then repeat: 2462 / 426

Moving on to step 6:
2462 divided by 426 is 5 with a remainder of 332.
Use 5 as the next digit of our solution. 
Result so far: 2015.0
Subtract 2130 from 2462 to get 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Moving on to step 7:
3320 divided by 426 is 7 with a remainder of 338.
Record the quotient 7 as the next digit in the result. 
Result so far: 2015.7
If we subtract 2982 from 3320, we get 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Advancing to step 8:
3380 divided by 426 is 7 with a remainder of 398.
Write down 7 as next digit of the result. 
Result so far: 2015.77
If we take 2982 away from 3380, we end up with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

The final outcome is 2015.77, with a leftover of 0.398.