We look at the division of 643540 by 14 
We're looking to find how many times 14 goes into 643540.

Advancing to step 1:
14 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 14

Let's proceed to step 2:
64 divided by 14 is 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 8 after subtracting 56 from 64.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 14

Moving on to step 3:
14 can be fit into 83 5 times, resulting in a remainder of 13.
Use 5 as the next digit of our solution. 
Result so far: 45.0
If we subtract 70 from 83, we get 13.
Bring next digit (5) of the dividend behind the 13 and repeat the process: 135 / 14

On to step 4:
When dividing 135 by 14, we get 9 with a remainder of 9.
The next digit of our result is 9. 
Result so far: 459.0
The remainder is 9 after subtracting 126 from 135.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 14

Moving on to step 5:
94 divided by 14 is 6 with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 4596.0
The remainder is 10 after subtracting 84 from 94.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 14

Going ahead to step 6:
100 divided by 14 is 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 45967.0
Subtract 98 from 100 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
When dividing 20 by 14, we get 1 with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 45967.1
The remainder is 6 after subtracting 14 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
14 goes into 60 4 times with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 45967.14
If we take 56 away from 60, we end up 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.

Step 9:
14 can be fit into 40 2 times, resulting in a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 45967.142
Subtracting 28 from 40 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 10:
If we divide 120 by 14, we get 8 and a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 45967.1428
If we subtract 112 from 120, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 11:
14 can be fit into 80 5 times, resulting in a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 45967.14285
Subtract 70 from 80 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.

Let's proceed to step 12:
When dividing 100 by 14, we get 7 with a remainder of 2.
The next digit of our result is 7. 
Result so far: 45967.142857
If we take 98 away from 100, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 13:
20 divided by 14 is 1 with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 45967.1428571
Subtracting 14 from 20 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 14:
14 goes into 60 4 times with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 45967.14285714
Deduct 56 from 60 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.

After the division, we end up with 45967.14285714 and a remainder of 4e-09.