817976 ÷ 42 
We want to figure out the number of times 817976 can be divided by 42.

Let's proceed to step 1:
The number 42 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 42

Moving on to step 2:
42 goes into 81 1 times with a remainder of 39.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 42 from 81 and we're left with 39.
Append the next digit (7) from the dividend to 39 and continue with: 397 / 42

Let's proceed to step 3:
42 goes into 397 9 times with a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we take 378 away from 397, we end up with 19.
Take the next digit (9) from the dividend and append it to 19, then repeat: 199 / 42

Step 4:
199 divided by 42 is 4 with a remainder of 31.
Put 4 as the next digit of the answer. 
Result so far: 194.0
Deduct 168 from 199 and we're left with 31.
Grab the next digit (7) from the dividend, add it to 31, then carry on: 317 / 42

Going ahead to step 5:
317 divided by 42 is 7 with a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 1947.0
If we subtract 294 from 317, we get 23.
Bring next digit (6) of the dividend behind the 23 and repeat the process: 236 / 42

Moving on to step 6:
236 divided by 42 is 5 with a remainder of 26.
Record the quotient 5 as the next digit in the result. 
Result so far: 19475.0
If we take 210 away from 236, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 7:
42 goes into 260 6 times with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 19475.6
If we take 252 away from 260, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 8:
If we divide 80 by 42, we get 1 and a remainder of 38.
The number 1 becomes the next digit in our result. 
Result so far: 19475.61
The remainder is 38 after subtracting 42 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 9:
380 divided by 42 is 9 with a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 19475.619
Subtract 378 from 380 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 10:
If we divide 20 by 42, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 19475.619
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 11:
42 goes into 200 4 times with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 19475.61904
If we take 168 away from 200, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 12:
If we divide 320 by 42, we get 7 and a remainder of 26.
Use 7 as the next digit of our solution. 
Result so far: 19475.619047
The remainder is 26 after subtracting 294 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 13:
42 can be fit into 260 6 times, resulting in a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 19475.6190476
If we subtract 252 from 260, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 14:
42 goes into 80 1 times with a remainder of 38.
The next digit of our result is 1. 
Result so far: 19475.61904761
If we subtract 42 from 80, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final outcome is 19475.61904761, with a leftover of 3.8e-08.