313420 ÷ 51 
We want to figure out the number of times 313420 can be divided by 51.

Let's proceed to step 1:
3 divided by 51 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 51

Moving on to step 2:
If we divide 31 by 51, we get 0 and a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Fetch the next digit (3) from the dividend, attach it to 31 and continue: 313 / 51

Let's proceed to step 3:
When dividing 313 by 51, we get 6 with a remainder of 7.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 7 after subtracting 306 from 313.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 51

Step 4:
The number 51 fits into 74 1 times, leaving a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 61.0
If we subtract 51 from 74, we get 23.
Append the next digit (2) from the dividend to 23 and continue with: 232 / 51

Going ahead to step 5:
232 divided by 51 is 4 with a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 614.0
Subtracting 204 from 232 leaves us with 28.
Include the next digit (0) from the dividend after 28, then repeat: 280 / 51

Let's proceed to step 6:
51 goes into 280 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 6145.0
If we subtract 255 from 280, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 7:
When dividing 250 by 51, we get 4 with a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 6145.4
If we take 204 away from 250, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 8:
51 goes into 460 9 times with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 6145.49
Subtract 459 from 460 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 9:
10 divided by 51 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 6145.49
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
100 divided by 51 is 1 with a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 6145.4901
If we take 51 away from 100, 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.

Let's proceed to step 11:
490 divided by 51 is 9 with a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 6145.49019
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.

Moving on to step 12:
51 can be fit into 310 6 times, resulting in a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 6145.490196
Subtract 306 from 310 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 13:
The number 51 fits into 40 0 times, leaving a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 6145.490196
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 14:
The number 51 fits into 400 7 times, leaving a remainder of 43.
The next digit of our result is 7. 
Result so far: 6145.49019607
If we take 357 away from 400, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The final result is 6145.49019607 with a remainder of 4.3e-08.