We divide 646668 by 60
The aim is to understand the frequency of 60 in 646668.

Going ahead to step 1:
60 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 60

On to step 2:
64 divided by 60 is 1 with a remainder of 4.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 60 from 64 and we're left with 4.
Fetch the next digit (6) from the dividend, attach it to 4 and continue: 46 / 60

Going ahead to step 3:
The number 60 fits into 46 0 times, leaving a remainder of 46.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 46 and we're left with 46.
Take the next digit (6) from the dividend and append it to 46, then repeat: 466 / 60

Moving on to step 4:
The number 60 fits into 466 7 times, leaving a remainder of 46.
The number 7 becomes the next digit in our result. 
Result so far: 107.0
Subtracting 420 from 466 leaves us with 46.
Take the next digit (6) from the dividend and append it to 46, then repeat: 466 / 60

Let's proceed to step 5:
When dividing 466 by 60, we get 7 with a remainder of 46.
Use 7 as the next digit of our solution. 
Result so far: 1077.0
Deduct 420 from 466 and we're left with 46.
Fetch the next digit (8) from the dividend, attach it to 46 and continue: 468 / 60

Going ahead to step 6:
468 divided by 60 is 7 with a remainder of 48.
Write down 7 as next digit of the result. 
Result so far: 10777.0
Subtract 420 from 468 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 7:
If we divide 480 by 60, we get 8 and a remainder of 0.
The next digit of our result is 8. 
Result so far: 10777.8
Subtract 480 from 480 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
0 divided by 60 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 10777.8
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
60 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 10777.8
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 10777.8 with a remainder of 0.0.