76496390 ÷ 138 
We're looking to find how many times 138 goes into 76496390.

On to step 1:
When dividing 7 by 138, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 138

Going ahead to step 2:
76 divided by 138 is 0 with a remainder of 76.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 76, we get 76.
Include the next digit (4) from the dividend after 76, then repeat: 764 / 138

On to step 3:
If we divide 764 by 138, we get 5 and a remainder of 74.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 690 from 764, we get 74.
Take the next digit (9) from the dividend and append it to 74, then repeat: 749 / 138

Step 4:
138 goes into 749 5 times with a remainder of 59.
Put 5 as the next digit of the answer. 
Result so far: 55.0
The remainder is 59 after subtracting 690 from 749.
Bring next digit (6) of the dividend behind the 59 and repeat the process: 596 / 138

Let's proceed to step 5:
138 goes into 596 4 times with a remainder of 44.
Put 4 as the next digit of the answer. 
Result so far: 554.0
Subtract 552 from 596 to get 44.
Fetch the next digit (3) from the dividend, attach it to 44 and continue: 443 / 138

On to step 6:
The number 138 fits into 443 3 times, leaving a remainder of 29.
The next digit of our result is 3. 
Result so far: 5543.0
The remainder is 29 after subtracting 414 from 443.
Take the next digit (9) from the dividend and append it to 29, then repeat: 299 / 138

Let's proceed to step 7:
The number 138 fits into 299 2 times, leaving a remainder of 23.
The next digit of our result is 2. 
Result so far: 55432.0
The remainder is 23 after subtracting 276 from 299.
Take the next digit (0) from the dividend and append it to 23, then repeat: 230 / 138

Going ahead to step 8:
When dividing 230 by 138, we get 1 with a remainder of 92.
Write down 1 as next digit of the result. 
Result so far: 554321.0
If we take 138 away from 230, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 9:
If we divide 920 by 138, we get 6 and a remainder of 92.
The number 6 becomes the next digit in our result. 
Result so far: 554321.6
If we subtract 828 from 920, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Moving on to step 10:
138 can be fit into 920 6 times, resulting in a remainder of 92.
The number 6 becomes the next digit in our result. 
Result so far: 554321.66
If we take 828 away from 920, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

After the division, we end up with 554321.66 and a remainder of 0.092.