We look at the division of 80987777 by 902 
We're looking to find how many times 902 goes into 80987777.

Let's proceed to step 1:
902 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 902

Moving on to step 2:
902 goes into 80 0 times with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 80 after subtracting 0 from 80.
Take the next digit (9) from the dividend and append it to 80, then repeat: 809 / 902

Advancing to step 3:
When dividing 809 by 902, we get 0 with a remainder of 809.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 809 to get 809.
Include the next digit (8) from the dividend after 809, then repeat: 8098 / 902

Step 4:
When dividing 8098 by 902, we get 8 with a remainder of 882.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 7216 from 8098 leaves us with 882.
Take the next digit (7) from the dividend and append it to 882, then repeat: 8827 / 902

Advancing to step 5:
The number 902 fits into 8827 9 times, leaving a remainder of 709.
The number 9 becomes the next digit in our result. 
Result so far: 89.0
Subtracting 8118 from 8827 leaves us with 709.
Append the next digit (7) from the dividend to 709 and continue with: 7097 / 902

Step 6:
The number 902 fits into 7097 7 times, leaving a remainder of 783.
The next digit of our result is 7. 
Result so far: 897.0
If we subtract 6314 from 7097, we get 783.
Fetch the next digit (7) from the dividend, attach it to 783 and continue: 7837 / 902

Moving on to step 7:
The number 902 fits into 7837 8 times, leaving a remainder of 621.
Use 8 as the next digit of our solution. 
Result so far: 8978.0
Subtracting 7216 from 7837 leaves us with 621.
Bring next digit (7) of the dividend behind the 621 and repeat the process: 6217 / 902

Step 8:
When dividing 6217 by 902, we get 6 with a remainder of 805.
Put 6 as the next digit of the answer. 
Result so far: 89786.0
If we subtract 5412 from 6217, we get 805.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8050, and continue the process.

Step 9:
902 can be fit into 8050 8 times, resulting in a remainder of 834.
The number 8 becomes the next digit in our result. 
Result so far: 89786.8
If we subtract 7216 from 8050, we get 834.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8340, and continue the process.

Going ahead to step 10:
8340 divided by 902 is 9 with a remainder of 222.
Use 9 as the next digit of our solution. 
Result so far: 89786.89
Subtracting 8118 from 8340 leaves us with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Let's proceed to step 11:
The number 902 fits into 2220 2 times, leaving a remainder of 416.
The number 2 becomes the next digit in our result. 
Result so far: 89786.892
Subtract 1804 from 2220 to get 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Going ahead to step 12:
4160 divided by 902 is 4 with a remainder of 552.
Use 4 as the next digit of our solution. 
Result so far: 89786.8924
If we take 3608 away from 4160, we end up with 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Going ahead to step 13:
902 can be fit into 5520 6 times, resulting in a remainder of 108.
Use 6 as the next digit of our solution. 
Result so far: 89786.89246
If we take 5412 away from 5520, we end up with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Moving on to step 14:
If we divide 1080 by 902, we get 1 and a remainder of 178.
The next digit of our result is 1. 
Result so far: 89786.892461
If we subtract 902 from 1080, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Step 15:
1780 divided by 902 is 1 with a remainder of 878.
Use 1 as the next digit of our solution. 
Result so far: 89786.8924611
If we take 902 away from 1780, we end up with 878.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8780, and continue the process.

The final outcome is 89786.8924611, with a leftover of 8.78e-06.