We're dividing 813166 by 42 
We're looking to find how many times 42 goes into 813166.

Moving on to step 1:
42 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 42

On to step 2:
If we divide 81 by 42, we get 1 and a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 42 from 81 to get 39.
Grab the next digit (3) from the dividend, add it to 39, then carry on: 393 / 42

On to step 3:
42 goes into 393 9 times with a remainder of 15.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
The remainder is 15 after subtracting 378 from 393.
Bring next digit (1) of the dividend behind the 15 and repeat the process: 151 / 42

Let's proceed to step 4:
151 divided by 42 is 3 with a remainder of 25.
The next digit of our result is 3. 
Result so far: 193.0
Subtracting 126 from 151 leaves us with 25.
Include the next digit (6) from the dividend after 25, then repeat: 256 / 42

Going ahead to step 5:
42 can be fit into 256 6 times, resulting in a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 1936.0
If we take 252 away from 256, we end up with 4.
Append the next digit (6) from the dividend to 4 and continue with: 46 / 42

Going ahead to step 6:
If we divide 46 by 42, we get 1 and a remainder of 4.
The next digit of our result is 1. 
Result so far: 19361.0
If we take 42 away from 46, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
When dividing 40 by 42, we get 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 19361.0
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 8:
42 goes into 400 9 times with a remainder of 22.
The next digit of our result is 9. 
Result so far: 19361.09
The remainder is 22 after subtracting 378 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 9:
42 goes into 220 5 times with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 19361.095
Subtract 210 from 220 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
100 divided by 42 is 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 19361.0952
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 11:
The number 42 fits into 160 3 times, leaving a remainder of 34.
Put 3 as the next digit of the answer. 
Result so far: 19361.09523
Deduct 126 from 160 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 12:
42 can be fit into 340 8 times, resulting in a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 19361.095238
If we subtract 336 from 340, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 13:
42 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 19361.095238
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 14:
When dividing 400 by 42, we get 9 with a remainder of 22.
Put 9 as the next digit of the answer. 
Result so far: 19361.09523809
Deduct 378 from 400 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Our division results in 19361.09523809 with a remaining 2.2e-08.