785149 ÷ 42 
Our goal is to divide 785149 by 42.

Going ahead to step 1:
42 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 42

Let's proceed to step 2:
When dividing 78 by 42, we get 1 with a remainder of 36.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 36 after subtracting 42 from 78.
Grab the next digit (5) from the dividend, add it to 36, then carry on: 365 / 42

Let's proceed to step 3:
365 divided by 42 is 8 with a remainder of 29.
Write down 8 as next digit of the result. 
Result so far: 18.0
The remainder is 29 after subtracting 336 from 365.
Fetch the next digit (1) from the dividend, attach it to 29 and continue: 291 / 42

Moving on to step 4:
291 divided by 42 is 6 with a remainder of 39.
Put 6 as the next digit of the answer. 
Result so far: 186.0
If we take 252 away from 291, we end up with 39.
Take the next digit (4) from the dividend and append it to 39, then repeat: 394 / 42

Advancing to step 5:
394 divided by 42 is 9 with a remainder of 16.
Record the quotient 9 as the next digit in the result. 
Result so far: 1869.0
If we take 378 away from 394, we end up with 16.
Grab the next digit (9) from the dividend, add it to 16, then carry on: 169 / 42

Going ahead to step 6:
If we divide 169 by 42, we get 4 and a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 18694.0
The remainder is 1 after subtracting 168 from 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
When dividing 10 by 42, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 18694.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
42 goes into 100 2 times with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 18694.02
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
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: 18694.023
Subtracting 126 from 160 leaves us 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.

On to step 10:
340 divided by 42 is 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 18694.0238
The remainder is 4 after subtracting 336 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 11:
If we divide 40 by 42, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 18694.0238
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.

On to step 12:
If we divide 400 by 42, we get 9 and a remainder of 22.
The next digit of our result is 9. 
Result so far: 18694.023809
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.

On to step 13:
42 can be fit into 220 5 times, resulting in a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 18694.0238095
If we subtract 210 from 220, we 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.

Going ahead to step 14:
42 can be fit into 100 2 times, resulting in a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 18694.02380952
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 18694.02380952, with a leftover of 1.6e-08.