We're dividing 15549721 by 89 
The aim is to understand the frequency of 89 in 15549721.

Advancing to step 1:
The number 89 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 89

Moving on to step 2:
The number 89 fits into 15 0 times, leaving a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Grab the next digit (5) from the dividend, add it to 15, then carry on: 155 / 89

On to step 3:
If we divide 155 by 89, we get 1 and a remainder of 66.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 89 away from 155, we end up with 66.
Take the next digit (4) from the dividend and append it to 66, then repeat: 664 / 89

Advancing to step 4:
When dividing 664 by 89, we get 7 with a remainder of 41.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we subtract 623 from 664, we get 41.
Fetch the next digit (9) from the dividend, attach it to 41 and continue: 419 / 89

Let's proceed to step 5:
The number 89 fits into 419 4 times, leaving a remainder of 63.
Put 4 as the next digit of the answer. 
Result so far: 174.0
If we subtract 356 from 419, we get 63.
Take the next digit (7) from the dividend and append it to 63, then repeat: 637 / 89

Step 6:
If we divide 637 by 89, we get 7 and a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 1747.0
If we take 623 away from 637, we end up with 14.
Take the next digit (2) from the dividend and append it to 14, then repeat: 142 / 89

Going ahead to step 7:
89 goes into 142 1 times with a remainder of 53.
Put 1 as the next digit of the answer. 
Result so far: 17471.0
Deduct 89 from 142 and we're left with 53.
Append the next digit (1) from the dividend to 53 and continue with: 531 / 89

Advancing to step 8:
89 goes into 531 5 times with a remainder of 86.
The number 5 becomes the next digit in our result. 
Result so far: 174715.0
Subtracting 445 from 531 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 9:
The number 89 fits into 860 9 times, leaving a remainder of 59.
The next digit of our result is 9. 
Result so far: 174715.9
Subtract 801 from 860 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 10:
89 goes into 590 6 times with a remainder of 56.
Record the quotient 6 as the next digit in the result. 
Result so far: 174715.96
The remainder is 56 after subtracting 534 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 11:
560 divided by 89 is 6 with a remainder of 26.
Use 6 as the next digit of our solution. 
Result so far: 174715.966
If we subtract 534 from 560, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final result is 174715.966 with a remainder of 0.0026.