16475776 ÷ 646 
We're looking to find how many times 646 goes into 16475776.

Moving on to step 1:
646 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 646

On to step 2:
16 divided by 646 is 0 with a remainder of 16.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 16, we get 16.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 646

Going ahead to step 3:
164 divided by 646 is 0 with a remainder of 164.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 164, we end up with 164.
Include the next digit (7) from the dividend after 164, then repeat: 1647 / 646

Let's proceed to step 4:
1647 divided by 646 is 2 with a remainder of 355.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 1292 from 1647, we get 355.
Take the next digit (5) from the dividend and append it to 355, then repeat: 3555 / 646

Step 5:
646 goes into 3555 5 times with a remainder of 325.
Use 5 as the next digit of our solution. 
Result so far: 25.0
The remainder is 325 after subtracting 3230 from 3555.
Bring next digit (7) of the dividend behind the 325 and repeat the process: 3257 / 646

Going ahead to step 6:
When dividing 3257 by 646, we get 5 with a remainder of 27.
Record the quotient 5 as the next digit in the result. 
Result so far: 255.0
The remainder is 27 after subtracting 3230 from 3257.
Append the next digit (7) from the dividend to 27 and continue with: 277 / 646

Let's proceed to step 7:
646 can be fit into 277 0 times, resulting in a remainder of 277.
Put 0 as the next digit of the answer. 
Result so far: 2550.0
The remainder is 277 after subtracting 0 from 277.
Include the next digit (6) from the dividend after 277, then repeat: 2776 / 646

Going ahead to step 8:
2776 divided by 646 is 4 with a remainder of 192.
Use 4 as the next digit of our solution. 
Result so far: 25504.0
If we take 2584 away from 2776, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Step 9:
646 goes into 1920 2 times with a remainder of 628.
The number 2 becomes the next digit in our result. 
Result so far: 25504.2
The remainder is 628 after subtracting 1292 from 1920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

Going ahead to step 10:
If we divide 6280 by 646, we get 9 and a remainder of 466.
The number 9 becomes the next digit in our result. 
Result so far: 25504.29
If we take 5814 away from 6280, we end up with 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Going ahead to step 11:
The number 646 fits into 4660 7 times, leaving a remainder of 138.
The number 7 becomes the next digit in our result. 
Result so far: 25504.297
Deduct 4522 from 4660 and we're left with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Step 12:
646 goes into 1380 2 times with a remainder of 88.
Write down 2 as next digit of the result. 
Result so far: 25504.2972
Subtracting 1292 from 1380 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 13:
If we divide 880 by 646, we get 1 and a remainder of 234.
Record the quotient 1 as the next digit in the result. 
Result so far: 25504.29721
If we take 646 away from 880, we end up with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

On to step 14:
When dividing 2340 by 646, we get 3 with a remainder of 402.
Use 3 as the next digit of our solution. 
Result so far: 25504.297213
If we subtract 1938 from 2340, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Going ahead to step 15:
4020 divided by 646 is 6 with a remainder of 144.
The number 6 becomes the next digit in our result. 
Result so far: 25504.2972136
The remainder is 144 after subtracting 3876 from 4020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Step 16:
When dividing 1440 by 646, we get 2 with a remainder of 148.
Put 2 as the next digit of the answer. 
Result so far: 25504.29721362
If we subtract 1292 from 1440, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

In conclusion, the division gives 25504.29721362 with a balance of 1.48e-07.