We're dividing 51141586 by 831 
We want to divide 51141586 by 831.

On to step 1:
When dividing 5 by 831, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 831

Going ahead to step 2:
831 can be fit into 51 0 times, resulting in a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Append the next digit (1) from the dividend to 51 and continue with: 511 / 831

Moving on to step 3:
If we divide 511 by 831, we get 0 and a remainder of 511.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 511 after subtracting 0 from 511.
Bring next digit (4) of the dividend behind the 511 and repeat the process: 5114 / 831

Moving on to step 4:
When dividing 5114 by 831, we get 6 with a remainder of 128.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
The remainder is 128 after subtracting 4986 from 5114.
Bring next digit (1) of the dividend behind the 128 and repeat the process: 1281 / 831

On to step 5:
831 can be fit into 1281 1 times, resulting in a remainder of 450.
Put 1 as the next digit of the answer. 
Result so far: 61.0
Subtract 831 from 1281 to get 450.
Append the next digit (5) from the dividend to 450 and continue with: 4505 / 831

Going ahead to step 6:
When dividing 4505 by 831, we get 5 with a remainder of 350.
Put 5 as the next digit of the answer. 
Result so far: 615.0
If we subtract 4155 from 4505, we get 350.
Include the next digit (8) from the dividend after 350, then repeat: 3508 / 831

Let's proceed to step 7:
If we divide 3508 by 831, we get 4 and a remainder of 184.
Record the quotient 4 as the next digit in the result. 
Result so far: 6154.0
Subtracting 3324 from 3508 leaves us with 184.
Fetch the next digit (6) from the dividend, attach it to 184 and continue: 1846 / 831

Step 8:
1846 divided by 831 is 2 with a remainder of 184.
Record the quotient 2 as the next digit in the result. 
Result so far: 61542.0
If we take 1662 away from 1846, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

On to step 9:
If we divide 1840 by 831, we get 2 and a remainder of 178.
Use 2 as the next digit of our solution. 
Result so far: 61542.2
Subtract 1662 from 1840 to get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Advancing to step 10:
831 goes into 1780 2 times with a remainder of 118.
Put 2 as the next digit of the answer. 
Result so far: 61542.22
If we subtract 1662 from 1780, we get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Our division results in 61542.22 with a remaining 0.118.