We're dividing 15581518 by 977 
Let's see how many times 977 fits into 15581518.

On to step 1:
The number 977 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 977

Advancing to step 2:
977 goes into 15 0 times with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Include the next digit (5) from the dividend after 15, then repeat: 155 / 977

Going ahead to step 3:
The number 977 fits into 155 0 times, leaving a remainder of 155.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 155 after subtracting 0 from 155.
Take the next digit (8) from the dividend and append it to 155, then repeat: 1558 / 977

Let's proceed to step 4:
When dividing 1558 by 977, we get 1 with a remainder of 581.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 977 from 1558 leaves us with 581.
Bring next digit (1) of the dividend behind the 581 and repeat the process: 5811 / 977

Advancing to step 5:
977 goes into 5811 5 times with a remainder of 926.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we subtract 4885 from 5811, we get 926.
Bring next digit (5) of the dividend behind the 926 and repeat the process: 9265 / 977

Advancing to step 6:
The number 977 fits into 9265 9 times, leaving a remainder of 472.
The next digit of our result is 9. 
Result so far: 159.0
Subtract 8793 from 9265 to get 472.
Grab the next digit (1) from the dividend, add it to 472, then carry on: 4721 / 977

Step 7:
The number 977 fits into 4721 4 times, leaving a remainder of 813.
Put 4 as the next digit of the answer. 
Result so far: 1594.0
Deduct 3908 from 4721 and we're left with 813.
Append the next digit (8) from the dividend to 813 and continue with: 8138 / 977

Advancing to step 8:
When dividing 8138 by 977, we get 8 with a remainder of 322.
Put 8 as the next digit of the answer. 
Result so far: 15948.0
Subtracting 7816 from 8138 leaves us with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Going ahead to step 9:
3220 divided by 977 is 3 with a remainder of 289.
The next digit of our result is 3. 
Result so far: 15948.3
The remainder is 289 after subtracting 2931 from 3220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Going ahead to step 10:
When dividing 2890 by 977, we get 2 with a remainder of 936.
The number 2 becomes the next digit in our result. 
Result so far: 15948.32
If we take 1954 away from 2890, we end up with 936.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9360, and continue the process.

Going ahead to step 11:
If we divide 9360 by 977, we get 9 and a remainder of 567.
Record the quotient 9 as the next digit in the result. 
Result so far: 15948.329
If we subtract 8793 from 9360, we get 567.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5670, and continue the process.

Moving on to step 12:
5670 divided by 977 is 5 with a remainder of 785.
Use 5 as the next digit of our solution. 
Result so far: 15948.3295
Deduct 4885 from 5670 and we're left with 785.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7850, and continue the process.

On to step 13:
The number 977 fits into 7850 8 times, leaving a remainder of 34.
The number 8 becomes the next digit in our result. 
Result so far: 15948.32958
Deduct 7816 from 7850 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 14:
The number 977 fits into 340 0 times, leaving a remainder of 340.
Record the quotient 0 as the next digit in the result. 
Result so far: 15948.32958
Deduct 0 from 340 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 15:
3400 divided by 977 is 3 with a remainder of 469.
Write down 3 as next digit of the result. 
Result so far: 15948.3295803
The remainder is 469 after subtracting 2931 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Advancing to step 16:
977 goes into 4690 4 times with a remainder of 782.
Write down 4 as next digit of the result. 
Result so far: 15948.32958034
Subtract 3908 from 4690 to get 782.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7820, and continue the process.

The final outcome is 15948.32958034, with a leftover of 7.82e-07.