8787160 ÷ 221 
We want to figure out the number of times 8787160 can be divided by 221.

Step 1:
When dividing 8 by 221, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 221

Let's proceed to step 2:
87 divided by 221 is 0 with a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Include the next digit (8) from the dividend after 87, then repeat: 878 / 221

Advancing to step 3:
221 goes into 878 3 times with a remainder of 215.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 663 from 878 to get 215.
Bring next digit (7) of the dividend behind the 215 and repeat the process: 2157 / 221

Going ahead to step 4:
If we divide 2157 by 221, we get 9 and a remainder of 168.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
Subtract 1989 from 2157 to get 168.
Grab the next digit (1) from the dividend, add it to 168, then carry on: 1681 / 221

Advancing to step 5:
221 can be fit into 1681 7 times, resulting in a remainder of 134.
Write down 7 as next digit of the result. 
Result so far: 397.0
Deduct 1547 from 1681 and we're left with 134.
Bring next digit (6) of the dividend behind the 134 and repeat the process: 1346 / 221

On to step 6:
When dividing 1346 by 221, we get 6 with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 3976.0
If we subtract 1326 from 1346, we get 20.
Include the next digit (0) from the dividend after 20, then repeat: 200 / 221

Moving on to step 7:
When dividing 200 by 221, we get 0 with a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 39760.0
Subtract 0 from 200 to get 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 8:
If we divide 2000 by 221, we get 9 and a remainder of 11.
The next digit of our result is 9. 
Result so far: 39760.9
Subtracting 1989 from 2000 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 9:
221 goes into 110 0 times with a remainder of 110.
Record the quotient 0 as the next digit in the result. 
Result so far: 39760.9
If we take 0 away from 110, we end up with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 10:
If we divide 1100 by 221, we get 4 and a remainder of 216.
Use 4 as the next digit of our solution. 
Result so far: 39760.904
If we subtract 884 from 1100, we get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Step 11:
221 goes into 2160 9 times with a remainder of 171.
The next digit of our result is 9. 
Result so far: 39760.9049
If we subtract 1989 from 2160, we get 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Let's proceed to step 12:
221 goes into 1710 7 times with a remainder of 163.
The next digit of our result is 7. 
Result so far: 39760.90497
If we subtract 1547 from 1710, we get 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Advancing to step 13:
The number 221 fits into 1630 7 times, leaving a remainder of 83.
Put 7 as the next digit of the answer. 
Result so far: 39760.904977
If we take 1547 away from 1630, we end up with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Our division results in 39760.904977 with a remaining 8.3e-06.