We divide 399905 by 60
The aim is to understand the frequency of 60 in 399905.

Step 1:
If we divide 3 by 60, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 60

Step 2:
60 goes into 39 0 times with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Bring next digit (9) of the dividend behind the 39 and repeat the process: 399 / 60

Moving on to step 3:
If we divide 399 by 60, we get 6 and a remainder of 39.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 360 from 399 to get 39.
Grab the next digit (9) from the dividend, add it to 39, then carry on: 399 / 60

Advancing to step 4:
If we divide 399 by 60, we get 6 and a remainder of 39.
Record the quotient 6 as the next digit in the result. 
Result so far: 66.0
If we subtract 360 from 399, we get 39.
Append the next digit (0) from the dividend to 39 and continue with: 390 / 60

Let's proceed to step 5:
60 goes into 390 6 times with a remainder of 30.
The next digit of our result is 6. 
Result so far: 666.0
Deduct 360 from 390 and we're left with 30.
Take the next digit (5) from the dividend and append it to 30, then repeat: 305 / 60

Step 6:
If we divide 305 by 60, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 6665.0
If we take 300 away from 305, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 7:
60 goes into 50 0 times with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 6665.0
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 8:
When dividing 500 by 60, we get 8 with a remainder of 20.
The number 8 becomes the next digit in our result. 
Result so far: 6665.08
Subtract 480 from 500 to 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.

Advancing to step 9:
60 can be fit into 200 3 times, resulting in a remainder of 20.
Record the quotient 3 as the next digit in the result. 
Result so far: 6665.083
Deduct 180 from 200 and we're left 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.

Going ahead to step 10:
200 divided by 60 is 3 with a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 6665.0833
If we take 180 away from 200, we end up 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 6665.0833, with a leftover of 0.0002.