We look at the division of 750583 by 60 
The aim is to understand the frequency of 60 in 750583.

Advancing to step 1:
When dividing 7 by 60, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (5) from the dividend to 7 and continue with: 75 / 60

Moving on to step 2:
When dividing 75 by 60, we get 1 with a remainder of 15.
The next digit of our result is 1. 
Result so far: 1.0
If we take 60 away from 75, we end up with 15.
Fetch the next digit (0) from the dividend, attach it to 15 and continue: 150 / 60

Going ahead to step 3:
150 divided by 60 is 2 with a remainder of 30.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtracting 120 from 150 leaves us with 30.
Fetch the next digit (5) from the dividend, attach it to 30 and continue: 305 / 60

Moving on to step 4:
When dividing 305 by 60, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 125.0
The remainder is 5 after subtracting 300 from 305.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 60

Advancing to step 5:
When dividing 58 by 60, we get 0 with a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 1250.0
If we take 0 away from 58, we end up with 58.
Grab the next digit (3) from the dividend, add it to 58, then carry on: 583 / 60

Moving on to step 6:
60 can be fit into 583 9 times, resulting in a remainder of 43.
Use 9 as the next digit of our solution. 
Result so far: 12509.0
If we subtract 540 from 583, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 7:
430 divided by 60 is 7 with a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 12509.7
Deduct 420 from 430 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.

Step 8:
The number 60 fits into 100 1 times, leaving a remainder of 40.
Write down 1 as next digit of the result. 
Result so far: 12509.71
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.

Let's proceed to step 9:
60 goes into 400 6 times with a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 12509.716
If we subtract 360 from 400, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
400 divided by 60 is 6 with a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 12509.7166
Deduct 360 from 400 and we're left 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.

The final outcome is 12509.7166, with a leftover of 0.0004.