8700270 ÷ 990 
Our goal is to divide 8700270 by 990.

Step 1:
990 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 990

On to step 2:
87 divided by 990 is 0 with a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Grab the next digit (0) from the dividend, add it to 87, then carry on: 870 / 990

Step 3:
The number 990 fits into 870 0 times, leaving a remainder of 870.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 870, we get 870.
Include the next digit (0) from the dividend after 870, then repeat: 8700 / 990

Let's proceed to step 4:
The number 990 fits into 8700 8 times, leaving a remainder of 780.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 7920 away from 8700, we end up with 780.
Fetch the next digit (2) from the dividend, attach it to 780 and continue: 7802 / 990

Moving on to step 5:
990 can be fit into 7802 7 times, resulting in a remainder of 872.
Write down 7 as next digit of the result. 
Result so far: 87.0
Subtracting 6930 from 7802 leaves us with 872.
Take the next digit (7) from the dividend and append it to 872, then repeat: 8727 / 990

On to step 6:
If we divide 8727 by 990, we get 8 and a remainder of 807.
Write down 8 as next digit of the result. 
Result so far: 878.0
Deduct 7920 from 8727 and we're left with 807.
Append the next digit (0) from the dividend to 807 and continue with: 8070 / 990

Advancing to step 7:
If we divide 8070 by 990, we get 8 and a remainder of 150.
The number 8 becomes the next digit in our result. 
Result so far: 8788.0
Subtracting 7920 from 8070 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 8:
1500 divided by 990 is 1 with a remainder of 510.
Write down 1 as next digit of the result. 
Result so far: 8788.1
If we subtract 990 from 1500, we get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Moving on to step 9:
990 goes into 5100 5 times with a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 8788.15
The remainder is 150 after subtracting 4950 from 5100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 10:
The number 990 fits into 1500 1 times, leaving a remainder of 510.
The number 1 becomes the next digit in our result. 
Result so far: 8788.151
Subtracting 990 from 1500 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Advancing to step 11:
5100 divided by 990 is 5 with a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 8788.1515
The remainder is 150 after subtracting 4950 from 5100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 12:
1500 divided by 990 is 1 with a remainder of 510.
The number 1 becomes the next digit in our result. 
Result so far: 8788.15151
If we subtract 990 from 1500, we get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Step 13:
990 can be fit into 5100 5 times, resulting in a remainder of 150.
The number 5 becomes the next digit in our result. 
Result so far: 8788.151515
Subtracting 4950 from 5100 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 14:
990 can be fit into 1500 1 times, resulting in a remainder of 510.
Write down 1 as next digit of the result. 
Result so far: 8788.1515151
If we take 990 away from 1500, we end up with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Going ahead to step 15:
990 can be fit into 5100 5 times, resulting in a remainder of 150.
Record the quotient 5 as the next digit in the result. 
Result so far: 8788.15151515
Deduct 4950 from 5100 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

After the division, we end up with 8788.15151515 and a remainder of 1.5e-07.