We divide 280638 by 77
We want to figure out the number of times 280638 can be divided by 77.

Let's proceed to step 1:
2 divided by 77 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 77

Advancing to step 2:
77 goes into 28 0 times with a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Take the next digit (0) from the dividend and append it to 28, then repeat: 280 / 77

Advancing to step 3:
280 divided by 77 is 3 with a remainder of 49.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 231 from 280, we get 49.
Include the next digit (6) from the dividend after 49, then repeat: 496 / 77

Step 4:
77 can be fit into 496 6 times, resulting in a remainder of 34.
The next digit of our result is 6. 
Result so far: 36.0
Deduct 462 from 496 and we're left with 34.
Bring next digit (3) of the dividend behind the 34 and repeat the process: 343 / 77

Advancing to step 5:
343 divided by 77 is 4 with a remainder of 35.
Use 4 as the next digit of our solution. 
Result so far: 364.0
If we subtract 308 from 343, we get 35.
Fetch the next digit (8) from the dividend, attach it to 35 and continue: 358 / 77

Going ahead to step 6:
77 can be fit into 358 4 times, resulting in a remainder of 50.
Put 4 as the next digit of the answer. 
Result so far: 3644.0
The remainder is 50 after subtracting 308 from 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 7:
If we divide 500 by 77, we get 6 and a remainder of 38.
Use 6 as the next digit of our solution. 
Result so far: 3644.6
The remainder is 38 after subtracting 462 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 8:
The number 77 fits into 380 4 times, leaving a remainder of 72.
The number 4 becomes the next digit in our result. 
Result so far: 3644.64
Subtracting 308 from 380 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 9:
77 goes into 720 9 times with a remainder of 27.
Use 9 as the next digit of our solution. 
Result so far: 3644.649
Deduct 693 from 720 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 10:
When dividing 270 by 77, we get 3 with a remainder of 39.
Record the quotient 3 as the next digit in the result. 
Result so far: 3644.6493
Subtract 231 from 270 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 11:
77 can be fit into 390 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 3644.64935
Subtracting 385 from 390 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 12:
50 divided by 77 is 0 with a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 3644.64935
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 13:
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: 3644.6493506
Subtract 462 from 500 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 14:
380 divided by 77 is 4 with a remainder of 72.
The number 4 becomes the next digit in our result. 
Result so far: 3644.64935064
If we take 308 away from 380, we end up with 72.
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 3644.64935064 with a remaining 7.2e-08.