16123887 ÷ 850 
Let's see how many times 850 fits into 16123887.

Advancing to step 1:
If we divide 1 by 850, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 850

Let's proceed to step 2:
16 divided by 850 is 0 with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Include the next digit (1) from the dividend after 16, then repeat: 161 / 850

On to step 3:
850 goes into 161 0 times with a remainder of 161.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 161 after subtracting 0 from 161.
Fetch the next digit (2) from the dividend, attach it to 161 and continue: 1612 / 850

Let's proceed to step 4:
The number 850 fits into 1612 1 times, leaving a remainder of 762.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 850 from 1612 to get 762.
Grab the next digit (3) from the dividend, add it to 762, then carry on: 7623 / 850

Advancing to step 5:
850 can be fit into 7623 8 times, resulting in a remainder of 823.
Put 8 as the next digit of the answer. 
Result so far: 18.0
The remainder is 823 after subtracting 6800 from 7623.
Include the next digit (8) from the dividend after 823, then repeat: 8238 / 850

Moving on to step 6:
If we divide 8238 by 850, we get 9 and a remainder of 588.
Write down 9 as next digit of the result. 
Result so far: 189.0
Subtracting 7650 from 8238 leaves us with 588.
Grab the next digit (8) from the dividend, add it to 588, then carry on: 5888 / 850

Going ahead to step 7:
5888 divided by 850 is 6 with a remainder of 788.
Use 6 as the next digit of our solution. 
Result so far: 1896.0
The remainder is 788 after subtracting 5100 from 5888.
Bring next digit (7) of the dividend behind the 788 and repeat the process: 7887 / 850

Going ahead to step 8:
If we divide 7887 by 850, we get 9 and a remainder of 237.
Put 9 as the next digit of the answer. 
Result so far: 18969.0
The remainder is 237 after subtracting 7650 from 7887.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Moving on to step 9:
850 can be fit into 2370 2 times, resulting in a remainder of 670.
Record the quotient 2 as the next digit in the result. 
Result so far: 18969.2
Subtracting 1700 from 2370 leaves us with 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

On to step 10:
The number 850 fits into 6700 7 times, leaving a remainder of 750.
The next digit of our result is 7. 
Result so far: 18969.27
Deduct 5950 from 6700 and we're left with 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Going ahead to step 11:
850 can be fit into 7500 8 times, resulting in a remainder of 700.
Write down 8 as next digit of the result. 
Result so far: 18969.278
The remainder is 700 after subtracting 6800 from 7500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Moving on to step 12:
The number 850 fits into 7000 8 times, leaving a remainder of 200.
Write down 8 as next digit of the result. 
Result so far: 18969.2788
Deduct 6800 from 7000 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 18969.2788, with a leftover of 0.002.