We're dividing 331243 by 51 
Our goal is to divide 331243 by 51.

Let's proceed to step 1:
If we divide 3 by 51, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 51

Step 2:
51 can be fit into 33 0 times, resulting in a remainder of 33.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 33 leaves us with 33.
Append the next digit (1) from the dividend to 33 and continue with: 331 / 51

Step 3:
When dividing 331 by 51, we get 6 with a remainder of 25.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 306 from 331 to get 25.
Bring next digit (2) of the dividend behind the 25 and repeat the process: 252 / 51

On to step 4:
The number 51 fits into 252 4 times, leaving a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 64.0
Deduct 204 from 252 and we're left with 48.
Fetch the next digit (4) from the dividend, attach it to 48 and continue: 484 / 51

Let's proceed to step 5:
51 goes into 484 9 times with a remainder of 25.
The number 9 becomes the next digit in our result. 
Result so far: 649.0
If we subtract 459 from 484, we get 25.
Take the next digit (3) from the dividend and append it to 25, then repeat: 253 / 51

Let's proceed to step 6:
When dividing 253 by 51, we get 4 with a remainder of 49.
Put 4 as the next digit of the answer. 
Result so far: 6494.0
If we take 204 away from 253, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 7:
When dividing 490 by 51, we get 9 with a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 6494.9
Subtracting 459 from 490 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 8:
51 can be fit into 310 6 times, resulting in a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 6494.96
Deduct 306 from 310 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
51 goes into 40 0 times with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 6494.96
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
51 goes into 400 7 times with a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 6494.9607
If we subtract 357 from 400, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 11:
51 can be fit into 430 8 times, resulting in a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 6494.96078
If we take 408 away from 430, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 12:
51 goes into 220 4 times with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 6494.960784
Deduct 204 from 220 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 13:
51 goes into 160 3 times with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 6494.9607843
The remainder is 7 after subtracting 153 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 14:
The number 51 fits into 70 1 times, leaving a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 6494.96078431
Subtracting 51 from 70 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final outcome is 6494.96078431, with a leftover of 1.9e-08.