We're dividing 14170287 by 646 
We want to divide 14170287 by 646.

Let's proceed to step 1:
646 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 646

Going ahead to step 2:
14 divided by 646 is 0 with a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 646

Moving on to step 3:
When dividing 141 by 646, we get 0 with a remainder of 141.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 141 and we're left with 141.
Fetch the next digit (7) from the dividend, attach it to 141 and continue: 1417 / 646

On to step 4:
646 goes into 1417 2 times with a remainder of 125.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 1292 from 1417, we get 125.
Fetch the next digit (0) from the dividend, attach it to 125 and continue: 1250 / 646

Advancing to step 5:
1250 divided by 646 is 1 with a remainder of 604.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Subtracting 646 from 1250 leaves us with 604.
Fetch the next digit (2) from the dividend, attach it to 604 and continue: 6042 / 646

Let's proceed to step 6:
646 goes into 6042 9 times with a remainder of 228.
Use 9 as the next digit of our solution. 
Result so far: 219.0
If we take 5814 away from 6042, we end up with 228.
Fetch the next digit (8) from the dividend, attach it to 228 and continue: 2288 / 646

Going ahead to step 7:
646 goes into 2288 3 times with a remainder of 350.
Use 3 as the next digit of our solution. 
Result so far: 2193.0
Deduct 1938 from 2288 and we're left with 350.
Fetch the next digit (7) from the dividend, attach it to 350 and continue: 3507 / 646

Let's proceed to step 8:
646 can be fit into 3507 5 times, resulting in a remainder of 277.
The number 5 becomes the next digit in our result. 
Result so far: 21935.0
Subtracting 3230 from 3507 leaves us with 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Moving on to step 9:
If we divide 2770 by 646, we get 4 and a remainder of 186.
Put 4 as the next digit of the answer. 
Result so far: 21935.4
Deduct 2584 from 2770 and we're left with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Step 10:
646 goes into 1860 2 times with a remainder of 568.
Record the quotient 2 as the next digit in the result. 
Result so far: 21935.42
If we subtract 1292 from 1860, we get 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

Step 11:
646 can be fit into 5680 8 times, resulting in a remainder of 512.
Record the quotient 8 as the next digit in the result. 
Result so far: 21935.428
Subtract 5168 from 5680 to get 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Going ahead to step 12:
When dividing 5120 by 646, we get 7 with a remainder of 598.
Use 7 as the next digit of our solution. 
Result so far: 21935.4287
The remainder is 598 after subtracting 4522 from 5120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

Step 13:
When dividing 5980 by 646, we get 9 with a remainder of 166.
Record the quotient 9 as the next digit in the result. 
Result so far: 21935.42879
Subtract 5814 from 5980 to get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Advancing to step 14:
If we divide 1660 by 646, we get 2 and a remainder of 368.
The number 2 becomes the next digit in our result. 
Result so far: 21935.428792
Deduct 1292 from 1660 and we're left with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Let's proceed to step 15:
The number 646 fits into 3680 5 times, leaving a remainder of 450.
The number 5 becomes the next digit in our result. 
Result so far: 21935.4287925
Deduct 3230 from 3680 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Let's proceed to step 16:
The number 646 fits into 4500 6 times, leaving a remainder of 624.
The next digit of our result is 6. 
Result so far: 21935.42879256
If we subtract 3876 from 4500, we get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

The final outcome is 21935.42879256, with a leftover of 6.24e-07.