We look at the division of 121899 by 60 
The aim is to understand the frequency of 60 in 121899.

On to step 1:
If we divide 1 by 60, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 60

On to step 2:
12 divided by 60 is 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 60

Step 3:
60 can be fit into 121 2 times, resulting in a remainder of 1.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 120 from 121 to get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 60

Let's proceed to step 4:
The number 60 fits into 18 0 times, leaving a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 20.0
The remainder is 18 after subtracting 0 from 18.
Fetch the next digit (9) from the dividend, attach it to 18 and continue: 189 / 60

Let's proceed to step 5:
If we divide 189 by 60, we get 3 and a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 203.0
Subtracting 180 from 189 leaves us with 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 60

Going ahead to step 6:
If we divide 99 by 60, we get 1 and a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 2031.0
Subtracting 60 from 99 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 7:
390 divided by 60 is 6 with a remainder of 30.
Use 6 as the next digit of our solution. 
Result so far: 2031.6
If we subtract 360 from 390, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
60 can be fit into 300 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 2031.65
The remainder is 0 after subtracting 300 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

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: 2031.65
Subtracting 0 from 0 leaves us 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.

Advancing to step 10:
The number 60 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 2031.65
The remainder is 0 after subtracting 0 from 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 quotient of the division is 2031.65, and the remainder is 0.0.