1012643 ÷ 850 
Our goal is to divide 1012643 by 850.

On to step 1:
850 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 850

Advancing to step 2:
850 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 850

Moving on to step 3:
The number 850 fits into 101 0 times, leaving a remainder of 101.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 101 and we're left with 101.
Include the next digit (2) from the dividend after 101, then repeat: 1012 / 850

Moving on to step 4:
When dividing 1012 by 850, we get 1 with a remainder of 162.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 850 from 1012 leaves us with 162.
Append the next digit (6) from the dividend to 162 and continue with: 1626 / 850

Let's proceed to step 5:
850 can be fit into 1626 1 times, resulting in a remainder of 776.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtract 850 from 1626 to get 776.
Grab the next digit (4) from the dividend, add it to 776, then carry on: 7764 / 850

Step 6:
The number 850 fits into 7764 9 times, leaving a remainder of 114.
Use 9 as the next digit of our solution. 
Result so far: 119.0
Subtract 7650 from 7764 to get 114.
Fetch the next digit (3) from the dividend, attach it to 114 and continue: 1143 / 850

Let's proceed to step 7:
1143 divided by 850 is 1 with a remainder of 293.
Put 1 as the next digit of the answer. 
Result so far: 1191.0
Deduct 850 from 1143 and we're left with 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Step 8:
If we divide 2930 by 850, we get 3 and a remainder of 380.
The number 3 becomes the next digit in our result. 
Result so far: 1191.3
Subtracting 2550 from 2930 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

On to step 9:
If we divide 3800 by 850, we get 4 and a remainder of 400.
Write down 4 as next digit of the result. 
Result so far: 1191.34
Deduct 3400 from 3800 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 10:
The number 850 fits into 4000 4 times, leaving a remainder of 600.
Use 4 as the next digit of our solution. 
Result so far: 1191.344
Subtracting 3400 from 4000 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

The final result is 1191.344 with a remainder of 0.06.