42639326 ÷ 507 
We want to figure out the number of times 42639326 can be divided by 507.

On to step 1:
When dividing 4 by 507, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 507

Moving on to step 2:
If we divide 42 by 507, we get 0 and a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Include the next digit (6) from the dividend after 42, then repeat: 426 / 507

Advancing to step 3:
The number 507 fits into 426 0 times, leaving a remainder of 426.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 426 and we're left with 426.
Append the next digit (3) from the dividend to 426 and continue with: 4263 / 507

Let's proceed to step 4:
507 goes into 4263 8 times with a remainder of 207.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 4056 away from 4263, we end up with 207.
Append the next digit (9) from the dividend to 207 and continue with: 2079 / 507

Advancing to step 5:
When dividing 2079 by 507, we get 4 with a remainder of 51.
Use 4 as the next digit of our solution. 
Result so far: 84.0
Subtracting 2028 from 2079 leaves us with 51.
Bring next digit (3) of the dividend behind the 51 and repeat the process: 513 / 507

Step 6:
If we divide 513 by 507, we get 1 and a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 841.0
Deduct 507 from 513 and we're left with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 507

Step 7:
62 divided by 507 is 0 with a remainder of 62.
Put 0 as the next digit of the answer. 
Result so far: 8410.0
Subtract 0 from 62 to get 62.
Take the next digit (6) from the dividend and append it to 62, then repeat: 626 / 507

Step 8:
507 can be fit into 626 1 times, resulting in a remainder of 119.
The number 1 becomes the next digit in our result. 
Result so far: 84101.0
If we subtract 507 from 626, we get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Moving on to step 9:
507 can be fit into 1190 2 times, resulting in a remainder of 176.
The number 2 becomes the next digit in our result. 
Result so far: 84101.2
If we subtract 1014 from 1190, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Advancing to step 10:
507 can be fit into 1760 3 times, resulting in a remainder of 239.
Put 3 as the next digit of the answer. 
Result so far: 84101.23
Subtracting 1521 from 1760 leaves us with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Advancing to step 11:
When dividing 2390 by 507, we get 4 with a remainder of 362.
Write down 4 as next digit of the result. 
Result so far: 84101.234
If we subtract 2028 from 2390, we get 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Moving on to step 12:
3620 divided by 507 is 7 with a remainder of 71.
The number 7 becomes the next digit in our result. 
Result so far: 84101.2347
Subtract 3549 from 3620 to get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 13:
507 can be fit into 710 1 times, resulting in a remainder of 203.
The next digit of our result is 1. 
Result so far: 84101.23471
If we subtract 507 from 710, we get 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Advancing to step 14:
The number 507 fits into 2030 4 times, leaving a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 84101.234714
Deduct 2028 from 2030 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 15:
When dividing 20 by 507, we get 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 84101.234714
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.

Going ahead to step 16:
The number 507 fits into 200 0 times, leaving a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 84101.234714
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 84101.234714, with a leftover of 2e-07.