We're dividing 42061300 by 850 
We want to divide 42061300 by 850.

On to step 1:
4 divided by 850 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 850

Let's proceed to step 2:
850 can be fit into 42 0 times, resulting in a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Take the next digit (0) from the dividend and append it to 42, then repeat: 420 / 850

Moving on to step 3:
420 divided by 850 is 0 with a remainder of 420.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 420, we end up with 420.
Bring next digit (6) of the dividend behind the 420 and repeat the process: 4206 / 850

Step 4:
850 can be fit into 4206 4 times, resulting in a remainder of 806.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 3400 from 4206 and we're left with 806.
Append the next digit (1) from the dividend to 806 and continue with: 8061 / 850

Step 5:
850 can be fit into 8061 9 times, resulting in a remainder of 411.
Use 9 as the next digit of our solution. 
Result so far: 49.0
The remainder is 411 after subtracting 7650 from 8061.
Append the next digit (3) from the dividend to 411 and continue with: 4113 / 850

Let's proceed to step 6:
850 goes into 4113 4 times with a remainder of 713.
Write down 4 as next digit of the result. 
Result so far: 494.0
Subtracting 3400 from 4113 leaves us with 713.
Grab the next digit (0) from the dividend, add it to 713, then carry on: 7130 / 850

Going ahead to step 7:
The number 850 fits into 7130 8 times, leaving a remainder of 330.
Put 8 as the next digit of the answer. 
Result so far: 4948.0
Deduct 6800 from 7130 and we're left with 330.
Grab the next digit (0) from the dividend, add it to 330, then carry on: 3300 / 850

Step 8:
3300 divided by 850 is 3 with a remainder of 750.
Use 3 as the next digit of our solution. 
Result so far: 49483.0
The remainder is 750 after subtracting 2550 from 3300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Step 9:
7500 divided by 850 is 8 with a remainder of 700.
Put 8 as the next digit of the answer. 
Result so far: 49483.8
If we take 6800 away from 7500, we end up with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Advancing to step 10:
7000 divided by 850 is 8 with a remainder of 200.
Write down 8 as next digit of the result. 
Result so far: 49483.88
If we subtract 6800 from 7000, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

After the division, we end up with 49483.88 and a remainder of 0.2.