We look at the division of 66587244 by 770 
Let's see how many times 770 fits into 66587244.

Advancing to step 1:
770 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 770

Advancing to step 2:
If we divide 66 by 770, we get 0 and a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Include the next digit (5) from the dividend after 66, then repeat: 665 / 770

Step 3:
770 goes into 665 0 times with a remainder of 665.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 665 after subtracting 0 from 665.
Fetch the next digit (8) from the dividend, attach it to 665 and continue: 6658 / 770

Step 4:
770 goes into 6658 8 times with a remainder of 498.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 6160 from 6658 to get 498.
Grab the next digit (7) from the dividend, add it to 498, then carry on: 4987 / 770

Moving on to step 5:
770 can be fit into 4987 6 times, resulting in a remainder of 367.
Write down 6 as next digit of the result. 
Result so far: 86.0
Subtracting 4620 from 4987 leaves us with 367.
Include the next digit (2) from the dividend after 367, then repeat: 3672 / 770

Going ahead to step 6:
3672 divided by 770 is 4 with a remainder of 592.
Put 4 as the next digit of the answer. 
Result so far: 864.0
If we subtract 3080 from 3672, we get 592.
Fetch the next digit (4) from the dividend, attach it to 592 and continue: 5924 / 770

Let's proceed to step 7:
When dividing 5924 by 770, we get 7 with a remainder of 534.
Record the quotient 7 as the next digit in the result. 
Result so far: 8647.0
If we take 5390 away from 5924, we end up with 534.
Grab the next digit (4) from the dividend, add it to 534, then carry on: 5344 / 770

On to step 8:
770 goes into 5344 6 times with a remainder of 724.
Record the quotient 6 as the next digit in the result. 
Result so far: 86476.0
The remainder is 724 after subtracting 4620 from 5344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7240, and continue the process.

Let's proceed to step 9:
770 goes into 7240 9 times with a remainder of 310.
Record the quotient 9 as the next digit in the result. 
Result so far: 86476.9
If we subtract 6930 from 7240, we get 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Going ahead to step 10:
3100 divided by 770 is 4 with a remainder of 20.
The next digit of our result is 4. 
Result so far: 86476.94
If we take 3080 away from 3100, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 11:
770 can be fit into 200 0 times, resulting in a remainder of 200.
The next digit of our result is 0. 
Result so far: 86476.94
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.

Advancing to step 12:
770 goes into 2000 2 times with a remainder of 460.
The number 2 becomes the next digit in our result. 
Result so far: 86476.9402
If we take 1540 away from 2000, we end up with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

On to step 13:
4600 divided by 770 is 5 with a remainder of 750.
Record the quotient 5 as the next digit in the result. 
Result so far: 86476.94025
The remainder is 750 after subtracting 3850 from 4600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Let's proceed to step 14:
If we divide 7500 by 770, we get 9 and a remainder of 570.
Write down 9 as next digit of the result. 
Result so far: 86476.940259
The remainder is 570 after subtracting 6930 from 7500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

On to step 15:
The number 770 fits into 5700 7 times, leaving a remainder of 310.
Record the quotient 7 as the next digit in the result. 
Result so far: 86476.9402597
Deduct 5390 from 5700 and we're left with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Going ahead to step 16:
The number 770 fits into 3100 4 times, leaving a remainder of 20.
The next digit of our result is 4. 
Result so far: 86476.94025974
Subtract 3080 from 3100 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 86476.94025974 with a remainder of 2e-08.