781522 divided by 42 
We're looking to find how many times 42 goes into 781522.

Advancing to step 1:
42 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 42

Moving on to step 2:
42 can be fit into 78 1 times, resulting in a remainder of 36.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 42 from 78 leaves us with 36.
Fetch the next digit (1) from the dividend, attach it to 36 and continue: 361 / 42

Going ahead to step 3:
361 divided by 42 is 8 with a remainder of 25.
The next digit of our result is 8. 
Result so far: 18.0
Subtract 336 from 361 to get 25.
Take the next digit (5) from the dividend and append it to 25, then repeat: 255 / 42

Let's proceed to step 4:
The number 42 fits into 255 6 times, leaving a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 186.0
If we take 252 away from 255, we end up with 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 42

Going ahead to step 5:
The number 42 fits into 32 0 times, leaving a remainder of 32.
The number 0 becomes the next digit in our result. 
Result so far: 1860.0
Subtract 0 from 32 to get 32.
Fetch the next digit (2) from the dividend, attach it to 32 and continue: 322 / 42

On to step 6:
42 goes into 322 7 times with a remainder of 28.
Use 7 as the next digit of our solution. 
Result so far: 18607.0
Deduct 294 from 322 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 7:
42 can be fit into 280 6 times, resulting in a remainder of 28.
Put 6 as the next digit of the answer. 
Result so far: 18607.6
Subtract 252 from 280 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 8:
42 can be fit into 280 6 times, resulting in a remainder of 28.
The next digit of our result is 6. 
Result so far: 18607.66
Subtract 252 from 280 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final result is 18607.66 with a remainder of 0.028.