Let's divide 555407 by 60
The aim is to understand the frequency of 60 in 555407.

Advancing to step 1:
The number 60 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 60

Let's proceed to step 2:
60 goes into 55 0 times with a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 55 after subtracting 0 from 55.
Append the next digit (5) from the dividend to 55 and continue with: 555 / 60

Step 3:
The number 60 fits into 555 9 times, leaving a remainder of 15.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 540 from 555, we get 15.
Grab the next digit (4) from the dividend, add it to 15, then carry on: 154 / 60

Advancing to step 4:
When dividing 154 by 60, we get 2 with a remainder of 34.
Write down 2 as next digit of the result. 
Result so far: 92.0
The remainder is 34 after subtracting 120 from 154.
Fetch the next digit (0) from the dividend, attach it to 34 and continue: 340 / 60

Let's proceed to step 5:
If we divide 340 by 60, we get 5 and a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 925.0
Subtracting 300 from 340 leaves us with 40.
Bring next digit (7) of the dividend behind the 40 and repeat the process: 407 / 60

On to step 6:
407 divided by 60 is 6 with a remainder of 47.
Put 6 as the next digit of the answer. 
Result so far: 9256.0
The remainder is 47 after subtracting 360 from 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 7:
The number 60 fits into 470 7 times, leaving a remainder of 50.
The next digit of our result is 7. 
Result so far: 9256.7
Subtract 420 from 470 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.

On to step 8:
If we divide 500 by 60, we get 8 and a remainder of 20.
The next digit of our result is 8. 
Result so far: 9256.78
If we subtract 480 from 500, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
60 can be fit into 200 3 times, resulting in a remainder of 20.
Use 3 as the next digit of our solution. 
Result so far: 9256.783
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 10:
If we divide 200 by 60, we get 3 and a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 9256.7833
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 9256.7833, with a leftover of 0.0002.