15553 ÷ 60 
The aim is to understand the frequency of 60 in 15553.

On to step 1:
60 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 60

Going ahead to step 2:
When dividing 15 by 60, we get 0 with a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Include the next digit (5) from the dividend after 15, then repeat: 155 / 60

Going ahead to step 3:
60 can be fit into 155 2 times, resulting in a remainder of 35.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 120 from 155, we get 35.
Take the next digit (5) from the dividend and append it to 35, then repeat: 355 / 60

Let's proceed to step 4:
The number 60 fits into 355 5 times, leaving a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 25.0
If we take 300 away from 355, we end up with 55.
Include the next digit (3) from the dividend after 55, then repeat: 553 / 60

Moving on to step 5:
553 divided by 60 is 9 with a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 259.0
If we take 540 away from 553, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 6:
If we divide 130 by 60, we get 2 and a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 259.2
Deduct 120 from 130 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 7:
60 can be fit into 100 1 times, resulting in a remainder of 40.
The number 1 becomes the next digit in our result. 
Result so far: 259.21
The remainder is 40 after subtracting 60 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 8:
60 can be fit into 400 6 times, resulting in a remainder of 40.
Write down 6 as next digit of the result. 
Result so far: 259.216
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
If we divide 400 by 60, we get 6 and a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 259.2166
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 259.2166 with a remaining 0.0004.