20143961 ÷ 853 
We want to figure out the number of times 20143961 can be divided by 853.

On to step 1:
2 divided by 853 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 853

Step 2:
853 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Take the next digit (1) from the dividend and append it to 20, then repeat: 201 / 853

Let's proceed to step 3:
The number 853 fits into 201 0 times, leaving a remainder of 201.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 201, we end up with 201.
Grab the next digit (4) from the dividend, add it to 201, then carry on: 2014 / 853

Moving on to step 4:
853 can be fit into 2014 2 times, resulting in a remainder of 308.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 1706 from 2014 to get 308.
Append the next digit (3) from the dividend to 308 and continue with: 3083 / 853

Advancing to step 5:
853 goes into 3083 3 times with a remainder of 524.
Use 3 as the next digit of our solution. 
Result so far: 23.0
If we take 2559 away from 3083, we end up with 524.
Take the next digit (9) from the dividend and append it to 524, then repeat: 5249 / 853

Let's proceed to step 6:
853 can be fit into 5249 6 times, resulting in a remainder of 131.
Put 6 as the next digit of the answer. 
Result so far: 236.0
Subtract 5118 from 5249 to get 131.
Include the next digit (6) from the dividend after 131, then repeat: 1316 / 853

On to step 7:
The number 853 fits into 1316 1 times, leaving a remainder of 463.
Use 1 as the next digit of our solution. 
Result so far: 2361.0
If we subtract 853 from 1316, we get 463.
Append the next digit (1) from the dividend to 463 and continue with: 4631 / 853

Step 8:
853 goes into 4631 5 times with a remainder of 366.
Put 5 as the next digit of the answer. 
Result so far: 23615.0
The remainder is 366 after subtracting 4265 from 4631.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Advancing to step 9:
The number 853 fits into 3660 4 times, leaving a remainder of 248.
Put 4 as the next digit of the answer. 
Result so far: 23615.4
Subtract 3412 from 3660 to get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

On to step 10:
853 can be fit into 2480 2 times, resulting in a remainder of 774.
The number 2 becomes the next digit in our result. 
Result so far: 23615.42
Subtracting 1706 from 2480 leaves us with 774.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7740, and continue the process.

Advancing to step 11:
853 can be fit into 7740 9 times, resulting in a remainder of 63.
Put 9 as the next digit of the answer. 
Result so far: 23615.429
Subtract 7677 from 7740 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 12:
The number 853 fits into 630 0 times, leaving a remainder of 630.
The next digit of our result is 0. 
Result so far: 23615.429
Subtract 0 from 630 to get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Step 13:
853 can be fit into 6300 7 times, resulting in a remainder of 329.
Write down 7 as next digit of the result. 
Result so far: 23615.42907
The remainder is 329 after subtracting 5971 from 6300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

On to step 14:
The number 853 fits into 3290 3 times, leaving a remainder of 731.
The next digit of our result is 3. 
Result so far: 23615.429073
If we subtract 2559 from 3290, we get 731.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7310, and continue the process.

Advancing to step 15:
853 can be fit into 7310 8 times, resulting in a remainder of 486.
The number 8 becomes the next digit in our result. 
Result so far: 23615.4290738
Subtract 6824 from 7310 to get 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Moving on to step 16:
The number 853 fits into 4860 5 times, leaving a remainder of 595.
The next digit of our result is 5. 
Result so far: 23615.42907385
Subtracting 4265 from 4860 leaves us with 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

The quotient of the division is 23615.42907385, and the remainder is 5.95e-07.