6403215 ÷ 115 
We want to figure out the number of times 6403215 can be divided by 115.

Going ahead to step 1:
6 divided by 115 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 115

Advancing to step 2:
115 can be fit into 64 0 times, resulting in a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Append the next digit (0) from the dividend to 64 and continue with: 640 / 115

Going ahead to step 3:
115 goes into 640 5 times with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 575 from 640 to get 65.
Include the next digit (3) from the dividend after 65, then repeat: 653 / 115

Let's proceed to step 4:
When dividing 653 by 115, we get 5 with a remainder of 78.
Use 5 as the next digit of our solution. 
Result so far: 55.0
If we subtract 575 from 653, we get 78.
Include the next digit (2) from the dividend after 78, then repeat: 782 / 115

Moving on to step 5:
When dividing 782 by 115, we get 6 with a remainder of 92.
Use 6 as the next digit of our solution. 
Result so far: 556.0
If we subtract 690 from 782, we get 92.
Take the next digit (1) from the dividend and append it to 92, then repeat: 921 / 115

On to step 6:
When dividing 921 by 115, we get 8 with a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 5568.0
Subtract 920 from 921 to get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 115

Moving on to step 7:
If we divide 15 by 115, we get 0 and a remainder of 15.
The next digit of our result is 0. 
Result so far: 55680.0
Deduct 0 from 15 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
115 goes into 150 1 times with a remainder of 35.
Record the quotient 1 as the next digit in the result. 
Result so far: 55680.1
If we subtract 115 from 150, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 9:
If we divide 350 by 115, we get 3 and a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 55680.13
If we subtract 345 from 350, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 10:
If we divide 50 by 115, we get 0 and a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 55680.13
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 11:
The number 115 fits into 500 4 times, leaving a remainder of 40.
Use 4 as the next digit of our solution. 
Result so far: 55680.1304
Subtract 460 from 500 to 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 12:
When dividing 400 by 115, we get 3 with a remainder of 55.
Use 3 as the next digit of our solution. 
Result so far: 55680.13043
The remainder is 55 after subtracting 345 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 13:
550 divided by 115 is 4 with a remainder of 90.
Put 4 as the next digit of the answer. 
Result so far: 55680.130434
The remainder is 90 after subtracting 460 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 14:
If we divide 900 by 115, we get 7 and a remainder of 95.
Record the quotient 7 as the next digit in the result. 
Result so far: 55680.1304347
If we take 805 away from 900, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Moving on to step 15:
When dividing 950 by 115, we get 8 with a remainder of 30.
Put 8 as the next digit of the answer. 
Result so far: 55680.13043478
Subtracting 920 from 950 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The quotient of the division is 55680.13043478, and the remainder is 3e-08.