16836399 ÷ 641 
We want to divide 16836399 by 641.

Let's proceed to step 1:
641 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 641

Let's proceed to step 2:
641 can be fit into 16 0 times, resulting in a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 16 to get 16.
Fetch the next digit (8) from the dividend, attach it to 16 and continue: 168 / 641

Moving on to step 3:
When dividing 168 by 641, we get 0 with a remainder of 168.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 168 and we're left with 168.
Fetch the next digit (3) from the dividend, attach it to 168 and continue: 1683 / 641

Let's proceed to step 4:
641 goes into 1683 2 times with a remainder of 401.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 1282 from 1683 to get 401.
Fetch the next digit (6) from the dividend, attach it to 401 and continue: 4016 / 641

Moving on to step 5:
641 can be fit into 4016 6 times, resulting in a remainder of 170.
Write down 6 as next digit of the result. 
Result so far: 26.0
Deduct 3846 from 4016 and we're left with 170.
Append the next digit (3) from the dividend to 170 and continue with: 1703 / 641

On to step 6:
641 can be fit into 1703 2 times, resulting in a remainder of 421.
Write down 2 as next digit of the result. 
Result so far: 262.0
The remainder is 421 after subtracting 1282 from 1703.
Bring next digit (9) of the dividend behind the 421 and repeat the process: 4219 / 641

Let's proceed to step 7:
4219 divided by 641 is 6 with a remainder of 373.
The number 6 becomes the next digit in our result. 
Result so far: 2626.0
Deduct 3846 from 4219 and we're left with 373.
Include the next digit (9) from the dividend after 373, then repeat: 3739 / 641

Step 8:
3739 divided by 641 is 5 with a remainder of 534.
Use 5 as the next digit of our solution. 
Result so far: 26265.0
If we subtract 3205 from 3739, we get 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Let's proceed to step 9:
641 goes into 5340 8 times with a remainder of 212.
Use 8 as the next digit of our solution. 
Result so far: 26265.8
Subtracting 5128 from 5340 leaves us with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 10:
If we divide 2120 by 641, we get 3 and a remainder of 197.
The number 3 becomes the next digit in our result. 
Result so far: 26265.83
The remainder is 197 after subtracting 1923 from 2120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Let's proceed to step 11:
641 goes into 1970 3 times with a remainder of 47.
The number 3 becomes the next digit in our result. 
Result so far: 26265.833
If we subtract 1923 from 1970, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

The final result is 26265.833 with a remainder of 0.0047.