28869871 divided by 770 
Our goal is to divide 28869871 by 770.

Step 1:
770 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 770

Advancing to step 2:
770 goes into 28 0 times with a remainder of 28.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Take the next digit (8) from the dividend and append it to 28, then repeat: 288 / 770

Step 3:
The number 770 fits into 288 0 times, leaving a remainder of 288.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 288, we get 288.
Append the next digit (6) from the dividend to 288 and continue with: 2886 / 770

Advancing to step 4:
When dividing 2886 by 770, we get 3 with a remainder of 576.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 576 after subtracting 2310 from 2886.
Fetch the next digit (9) from the dividend, attach it to 576 and continue: 5769 / 770

Going ahead to step 5:
When dividing 5769 by 770, we get 7 with a remainder of 379.
The next digit of our result is 7. 
Result so far: 37.0
Subtracting 5390 from 5769 leaves us with 379.
Bring next digit (8) of the dividend behind the 379 and repeat the process: 3798 / 770

Moving on to step 6:
770 goes into 3798 4 times with a remainder of 718.
Put 4 as the next digit of the answer. 
Result so far: 374.0
The remainder is 718 after subtracting 3080 from 3798.
Append the next digit (7) from the dividend to 718 and continue with: 7187 / 770

Step 7:
7187 divided by 770 is 9 with a remainder of 257.
The next digit of our result is 9. 
Result so far: 3749.0
Subtracting 6930 from 7187 leaves us with 257.
Append the next digit (1) from the dividend to 257 and continue with: 2571 / 770

Going ahead to step 8:
770 can be fit into 2571 3 times, resulting in a remainder of 261.
The number 3 becomes the next digit in our result. 
Result so far: 37493.0
Deduct 2310 from 2571 and we're left with 261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

Step 9:
When dividing 2610 by 770, we get 3 with a remainder of 300.
Put 3 as the next digit of the answer. 
Result so far: 37493.3
If we take 2310 away from 2610, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Step 10:
If we divide 3000 by 770, we get 3 and a remainder of 690.
Use 3 as the next digit of our solution. 
Result so far: 37493.33
Deduct 2310 from 3000 and we're left with 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

The quotient of the division is 37493.33, and the remainder is 0.69.