We look at the division of 643800 by 14 
We want to divide 643800 by 14.

Let's proceed to step 1:
The number 14 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 14

On to step 2:
14 goes into 64 4 times with a remainder of 8.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 56 from 64 to get 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 14

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
Subtract 70 from 83 to get 13.
Include the next digit (8) from the dividend after 13, then repeat: 138 / 14

Step 4:
138 divided by 14 is 9 with a remainder of 12.
Put 9 as the next digit of the answer. 
Result so far: 459.0
Subtract 126 from 138 to get 12.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 14

On to step 5:
The number 14 fits into 120 8 times, leaving a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 4598.0
Subtracting 112 from 120 leaves us with 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 14

On to step 6:
If we divide 80 by 14, we get 5 and a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 45985.0
Subtracting 70 from 80 leaves us with 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 7:
14 goes into 100 7 times with a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 45985.7
The remainder is 2 after subtracting 98 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
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: 45985.71
If we subtract 14 from 20, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 9:
14 can be fit into 60 4 times, resulting in a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 45985.714
Subtracting 56 from 60 leaves us 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.

Let's proceed to step 10:
When dividing 40 by 14, we get 2 with a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 45985.7142
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.

Moving on to step 11:
The number 14 fits into 120 8 times, leaving a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 45985.71428
Subtracting 112 from 120 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
If we divide 80 by 14, we get 5 and a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 45985.714285
The remainder is 10 after subtracting 70 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
100 divided by 14 is 7 with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 45985.7142857
Subtracting 98 from 100 leaves us 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.

Moving on to step 14:
20 divided by 14 is 1 with a remainder of 6.
The next digit of our result is 1. 
Result so far: 45985.71428571
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.

In conclusion, the division gives 45985.71428571 with a balance of 6e-09.