89871099 ÷ 553 
We want to figure out the number of times 89871099 can be divided by 553.

Step 1:
When dividing 8 by 553, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 553

Let's proceed to step 2:
When dividing 89 by 553, we get 0 with a remainder of 89.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 89 after subtracting 0 from 89.
Grab the next digit (8) from the dividend, add it to 89, then carry on: 898 / 553

Step 3:
The number 553 fits into 898 1 times, leaving a remainder of 345.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 345 after subtracting 553 from 898.
Grab the next digit (7) from the dividend, add it to 345, then carry on: 3457 / 553

Moving on to step 4:
If we divide 3457 by 553, we get 6 and a remainder of 139.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we subtract 3318 from 3457, we get 139.
Fetch the next digit (1) from the dividend, attach it to 139 and continue: 1391 / 553

Going ahead to step 5:
If we divide 1391 by 553, we get 2 and a remainder of 285.
Write down 2 as next digit of the result. 
Result so far: 162.0
Subtract 1106 from 1391 to get 285.
Include the next digit (0) from the dividend after 285, then repeat: 2850 / 553

Moving on to step 6:
553 can be fit into 2850 5 times, resulting in a remainder of 85.
Record the quotient 5 as the next digit in the result. 
Result so far: 1625.0
Deduct 2765 from 2850 and we're left with 85.
Include the next digit (9) from the dividend after 85, then repeat: 859 / 553

Step 7:
When dividing 859 by 553, we get 1 with a remainder of 306.
Put 1 as the next digit of the answer. 
Result so far: 16251.0
The remainder is 306 after subtracting 553 from 859.
Append the next digit (9) from the dividend to 306 and continue with: 3069 / 553

Moving on to step 8:
3069 divided by 553 is 5 with a remainder of 304.
The next digit of our result is 5. 
Result so far: 162515.0
If we subtract 2765 from 3069, we get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 9:
553 can be fit into 3040 5 times, resulting in a remainder of 275.
Write down 5 as next digit of the result. 
Result so far: 162515.5
Subtracting 2765 from 3040 leaves us with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

On to step 10:
If we divide 2750 by 553, we get 4 and a remainder of 538.
Put 4 as the next digit of the answer. 
Result so far: 162515.54
Subtract 2212 from 2750 to get 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Advancing to step 11:
5380 divided by 553 is 9 with a remainder of 403.
The next digit of our result is 9. 
Result so far: 162515.549
If we subtract 4977 from 5380, we get 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

On to step 12:
553 can be fit into 4030 7 times, resulting in a remainder of 159.
The next digit of our result is 7. 
Result so far: 162515.5497
Subtracting 3871 from 4030 leaves us with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Going ahead to step 13:
If we divide 1590 by 553, we get 2 and a remainder of 484.
Record the quotient 2 as the next digit in the result. 
Result so far: 162515.54972
The remainder is 484 after subtracting 1106 from 1590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Going ahead to step 14:
The number 553 fits into 4840 8 times, leaving a remainder of 416.
The number 8 becomes the next digit in our result. 
Result so far: 162515.549728
If we take 4424 away from 4840, we end up with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Moving on to step 15:
The number 553 fits into 4160 7 times, leaving a remainder of 289.
Record the quotient 7 as the next digit in the result. 
Result so far: 162515.5497287
Deduct 3871 from 4160 and we're left with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

On to step 16:
2890 divided by 553 is 5 with a remainder of 125.
Put 5 as the next digit of the answer. 
Result so far: 162515.54972875
If we subtract 2765 from 2890, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

The final result is 162515.54972875 with a remainder of 1.25e-07.