138496 ÷ 77 
We want to divide 138496 by 77.

Step 1:
When dividing 1 by 77, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 77

On to step 2:
77 can be fit into 13 0 times, resulting in a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 77

Advancing to step 3:
77 goes into 138 1 times with a remainder of 61.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 77 from 138 to get 61.
Include the next digit (4) from the dividend after 61, then repeat: 614 / 77

On to step 4:
If we divide 614 by 77, we get 7 and a remainder of 75.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we subtract 539 from 614, we get 75.
Bring next digit (9) of the dividend behind the 75 and repeat the process: 759 / 77

Going ahead to step 5:
The number 77 fits into 759 9 times, leaving a remainder of 66.
Write down 9 as next digit of the result. 
Result so far: 179.0
Subtract 693 from 759 to get 66.
Include the next digit (6) from the dividend after 66, then repeat: 666 / 77

Moving on to step 6:
77 can be fit into 666 8 times, resulting in a remainder of 50.
The number 8 becomes the next digit in our result. 
Result so far: 1798.0
Deduct 616 from 666 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 7:
When dividing 500 by 77, we get 6 with a remainder of 38.
Record the quotient 6 as the next digit in the result. 
Result so far: 1798.6
If we take 462 away from 500, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 8:
77 goes into 380 4 times with a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 1798.64
The remainder is 72 after subtracting 308 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 9:
When dividing 720 by 77, we get 9 with a remainder of 27.
The next digit of our result is 9. 
Result so far: 1798.649
Subtract 693 from 720 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 10:
If we divide 270 by 77, we get 3 and a remainder of 39.
Put 3 as the next digit of the answer. 
Result so far: 1798.6493
If we take 231 away from 270, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 11:
390 divided by 77 is 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 1798.64935
The remainder is 5 after subtracting 385 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 12:
The number 77 fits into 50 0 times, leaving a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 1798.64935
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 13:
If we divide 500 by 77, we get 6 and a remainder of 38.
Record the quotient 6 as the next digit in the result. 
Result so far: 1798.6493506
Deduct 462 from 500 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 14:
77 goes into 380 4 times with a remainder of 72.
Write down 4 as next digit of the result. 
Result so far: 1798.64935064
The remainder is 72 after subtracting 308 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Our division results in 1798.64935064 with a remaining 7.2e-08.