We divide 90189589 by 550
The aim is to understand the frequency of 550 in 90189589.

On to step 1:
The number 550 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 550

Advancing to step 2:
550 can be fit into 90 0 times, resulting in a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Append the next digit (1) from the dividend to 90 and continue with: 901 / 550

On to step 3:
550 goes into 901 1 times with a remainder of 351.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 550 from 901 leaves us with 351.
Include the next digit (8) from the dividend after 351, then repeat: 3518 / 550

Let's proceed to step 4:
The number 550 fits into 3518 6 times, leaving a remainder of 218.
The next digit of our result is 6. 
Result so far: 16.0
Subtracting 3300 from 3518 leaves us with 218.
Fetch the next digit (9) from the dividend, attach it to 218 and continue: 2189 / 550

Let's proceed to step 5:
If we divide 2189 by 550, we get 3 and a remainder of 539.
Put 3 as the next digit of the answer. 
Result so far: 163.0
Subtract 1650 from 2189 to get 539.
Fetch the next digit (5) from the dividend, attach it to 539 and continue: 5395 / 550

Advancing to step 6:
550 can be fit into 5395 9 times, resulting in a remainder of 445.
The next digit of our result is 9. 
Result so far: 1639.0
If we take 4950 away from 5395, we end up with 445.
Grab the next digit (8) from the dividend, add it to 445, then carry on: 4458 / 550

On to step 7:
The number 550 fits into 4458 8 times, leaving a remainder of 58.
The next digit of our result is 8. 
Result so far: 16398.0
The remainder is 58 after subtracting 4400 from 4458.
Include the next digit (9) from the dividend after 58, then repeat: 589 / 550

On to step 8:
The number 550 fits into 589 1 times, leaving a remainder of 39.
Write down 1 as next digit of the result. 
Result so far: 163981.0
If we subtract 550 from 589, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 9:
The number 550 fits into 390 0 times, leaving a remainder of 390.
The next digit of our result is 0. 
Result so far: 163981.0
Subtract 0 from 390 to get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

On to step 10:
When dividing 3900 by 550, we get 7 with a remainder of 50.
Record the quotient 7 as the next digit in the result. 
Result so far: 163981.07
Deduct 3850 from 3900 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 11:
500 divided by 550 is 0 with a remainder of 500.
Write down 0 as next digit of the result. 
Result so far: 163981.07
Subtract 0 from 500 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 12:
When dividing 5000 by 550, we get 9 with a remainder of 50.
The next digit of our result is 9. 
Result so far: 163981.0709
Subtracting 4950 from 5000 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 13:
550 can be fit into 500 0 times, resulting in a remainder of 500.
Put 0 as the next digit of the answer. 
Result so far: 163981.0709
Subtract 0 from 500 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 14:
If we divide 5000 by 550, we get 9 and a remainder of 50.
Use 9 as the next digit of our solution. 
Result so far: 163981.070909
The remainder is 50 after subtracting 4950 from 5000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 15:
550 can be fit into 500 0 times, resulting in a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 163981.070909
Subtracting 0 from 500 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Moving on to step 16:
When dividing 5000 by 550, we get 9 with a remainder of 50.
Use 9 as the next digit of our solution. 
Result so far: 163981.07090909
Subtract 4950 from 5000 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The quotient of the division is 163981.07090909, and the remainder is 5e-08.