42040646 ÷ 507 
We want to figure out the number of times 42040646 can be divided by 507.

Going ahead to step 1:
4 divided by 507 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 507

Step 2:
When dividing 42 by 507, we get 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Include the next digit (0) from the dividend after 42, then repeat: 420 / 507

Going ahead to step 3:
When dividing 420 by 507, we get 0 with a remainder of 420.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 420, we get 420.
Include the next digit (4) from the dividend after 420, then repeat: 4204 / 507

Going ahead to step 4:
When dividing 4204 by 507, we get 8 with a remainder of 148.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 4056 from 4204 leaves us with 148.
Fetch the next digit (0) from the dividend, attach it to 148 and continue: 1480 / 507

Going ahead to step 5:
If we divide 1480 by 507, we get 2 and a remainder of 466.
The next digit of our result is 2. 
Result so far: 82.0
Deduct 1014 from 1480 and we're left with 466.
Fetch the next digit (6) from the dividend, attach it to 466 and continue: 4666 / 507

Let's proceed to step 6:
4666 divided by 507 is 9 with a remainder of 103.
Use 9 as the next digit of our solution. 
Result so far: 829.0
Subtracting 4563 from 4666 leaves us with 103.
Fetch the next digit (4) from the dividend, attach it to 103 and continue: 1034 / 507

Step 7:
507 can be fit into 1034 2 times, resulting in a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 8292.0
If we take 1014 away from 1034, we end up with 20.
Include the next digit (6) from the dividend after 20, then repeat: 206 / 507

Let's proceed to step 8:
507 goes into 206 0 times with a remainder of 206.
Record the quotient 0 as the next digit in the result. 
Result so far: 82920.0
Deduct 0 from 206 and we're left with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Advancing to step 9:
The number 507 fits into 2060 4 times, leaving a remainder of 32.
Record the quotient 4 as the next digit in the result. 
Result so far: 82920.4
If we take 2028 away from 2060, 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 10:
507 can be fit into 320 0 times, resulting in a remainder of 320.
Record the quotient 0 as the next digit in the result. 
Result so far: 82920.4
If we take 0 away from 320, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 11:
507 goes into 3200 6 times with a remainder of 158.
The number 6 becomes the next digit in our result. 
Result so far: 82920.406
If we take 3042 away from 3200, we end up with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Step 12:
507 goes into 1580 3 times with a remainder of 59.
The number 3 becomes the next digit in our result. 
Result so far: 82920.4063
If we take 1521 away from 1580, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 13:
590 divided by 507 is 1 with a remainder of 83.
Put 1 as the next digit of the answer. 
Result so far: 82920.40631
If we take 507 away from 590, we end up with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 14:
830 divided by 507 is 1 with a remainder of 323.
Write down 1 as next digit of the result. 
Result so far: 82920.406311
Deduct 507 from 830 and we're left with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

The final outcome is 82920.406311, with a leftover of 3.23e-05.