We look at the division of 743857 by 60 
The aim is to understand the frequency of 60 in 743857.

On to step 1:
If we divide 7 by 60, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 60

Moving on to step 2:
74 divided by 60 is 1 with a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 14 after subtracting 60 from 74.
Grab the next digit (3) from the dividend, add it to 14, then carry on: 143 / 60

Going ahead to step 3:
60 goes into 143 2 times with a remainder of 23.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we subtract 120 from 143, we get 23.
Grab the next digit (8) from the dividend, add it to 23, then carry on: 238 / 60

Advancing to step 4:
238 divided by 60 is 3 with a remainder of 58.
Use 3 as the next digit of our solution. 
Result so far: 123.0
The remainder is 58 after subtracting 180 from 238.
Include the next digit (5) from the dividend after 58, then repeat: 585 / 60

On to step 5:
When dividing 585 by 60, we get 9 with a remainder of 45.
Write down 9 as next digit of the result. 
Result so far: 1239.0
Subtracting 540 from 585 leaves us with 45.
Fetch the next digit (7) from the dividend, attach it to 45 and continue: 457 / 60

Let's proceed to step 6:
If we divide 457 by 60, we get 7 and a remainder of 37.
The next digit of our result is 7. 
Result so far: 12397.0
If we subtract 420 from 457, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
370 divided by 60 is 6 with a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 12397.6
If we subtract 360 from 370, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
If we divide 100 by 60, we get 1 and a remainder of 40.
Put 1 as the next digit of the answer. 
Result so far: 12397.61
If we subtract 60 from 100, 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.

Let's proceed to step 9:
60 can be fit into 400 6 times, resulting in a remainder of 40.
Put 6 as the next digit of the answer. 
Result so far: 12397.616
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
The number 60 fits into 400 6 times, leaving a remainder of 40.
Write down 6 as next digit of the result. 
Result so far: 12397.6166
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.

After the division, we end up with 12397.6166 and a remainder of 0.0004.