Let's divide 644916 by 60
The aim is to understand the frequency of 60 in 644916.

Moving on to step 1:
When dividing 6 by 60, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 60

Going ahead to step 2:
The number 60 fits into 64 1 times, leaving a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 60 away from 64, we end up with 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 60

Going ahead to step 3:
60 can be fit into 44 0 times, resulting in a remainder of 44.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 44 to get 44.
Fetch the next digit (9) from the dividend, attach it to 44 and continue: 449 / 60

Going ahead to step 4:
60 goes into 449 7 times with a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 107.0
Subtract 420 from 449 to get 29.
Include the next digit (1) from the dividend after 29, then repeat: 291 / 60

On to step 5:
60 goes into 291 4 times with a remainder of 51.
The next digit of our result is 4. 
Result so far: 1074.0
If we take 240 away from 291, we end up with 51.
Grab the next digit (6) from the dividend, add it to 51, then carry on: 516 / 60

Step 6:
When dividing 516 by 60, we get 8 with a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 10748.0
Subtracting 480 from 516 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 7:
60 can be fit into 360 6 times, resulting in a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 10748.6
If we take 360 away from 360, we end up 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.

Step 8:
0 divided by 60 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10748.6
If we take 0 away from 0, we end up 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.

Moving on to step 9:
60 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 10748.6
If we subtract 0 from 0, we 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 outcome is 10748.6, with a leftover of 0.0.