We look at the division of 2514229 by 646 
We're looking to find how many times 646 goes into 2514229.

Step 1:
When dividing 2 by 646, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 646

On to step 2:
646 can be fit into 25 0 times, resulting in a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 646

Going ahead to step 3:
When dividing 251 by 646, we get 0 with a remainder of 251.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 251 and we're left with 251.
Fetch the next digit (4) from the dividend, attach it to 251 and continue: 2514 / 646

Step 4:
When dividing 2514 by 646, we get 3 with a remainder of 576.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 1938 from 2514 and we're left with 576.
Take the next digit (2) from the dividend and append it to 576, then repeat: 5762 / 646

Advancing to step 5:
646 goes into 5762 8 times with a remainder of 594.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
Deduct 5168 from 5762 and we're left with 594.
Append the next digit (2) from the dividend to 594 and continue with: 5942 / 646

Moving on to step 6:
When dividing 5942 by 646, we get 9 with a remainder of 128.
The number 9 becomes the next digit in our result. 
Result so far: 389.0
If we take 5814 away from 5942, we end up with 128.
Bring next digit (9) of the dividend behind the 128 and repeat the process: 1289 / 646

Let's proceed to step 7:
1289 divided by 646 is 1 with a remainder of 643.
Use 1 as the next digit of our solution. 
Result so far: 3891.0
Subtract 646 from 1289 to get 643.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6430, and continue the process.

Let's proceed to step 8:
646 can be fit into 6430 9 times, resulting in a remainder of 616.
Record the quotient 9 as the next digit in the result. 
Result so far: 3891.9
Deduct 5814 from 6430 and we're left with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

On to step 9:
6160 divided by 646 is 9 with a remainder of 346.
The next digit of our result is 9. 
Result so far: 3891.99
Subtract 5814 from 6160 to get 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

In conclusion, the division gives 3891.99 with a balance of 0.346.