72878698 ÷ 60 
The aim is to understand the frequency of 60 in 72878698.

On to step 1:
If we divide 7 by 60, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 60

Advancing to step 2:
If we divide 72 by 60, we get 1 and a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 12 after subtracting 60 from 72.
Take the next digit (8) from the dividend and append it to 12, then repeat: 128 / 60

Moving on to step 3:
When dividing 128 by 60, we get 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 120 from 128 leaves us with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 60

On to step 4:
60 goes into 87 1 times with a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 121.0
Deduct 60 from 87 and we're left with 27.
Grab the next digit (8) from the dividend, add it to 27, then carry on: 278 / 60

Let's proceed to step 5:
When dividing 278 by 60, we get 4 with a remainder of 38.
Put 4 as the next digit of the answer. 
Result so far: 1214.0
If we take 240 away from 278, we end up with 38.
Include the next digit (6) from the dividend after 38, then repeat: 386 / 60

Let's proceed to step 6:
386 divided by 60 is 6 with a remainder of 26.
The next digit of our result is 6. 
Result so far: 12146.0
Subtracting 360 from 386 leaves us with 26.
Bring next digit (9) of the dividend behind the 26 and repeat the process: 269 / 60

Advancing to step 7:
60 can be fit into 269 4 times, resulting in a remainder of 29.
Use 4 as the next digit of our solution. 
Result so far: 121464.0
The remainder is 29 after subtracting 240 from 269.
Take the next digit (8) from the dividend and append it to 29, then repeat: 298 / 60

Moving on to step 8:
When dividing 298 by 60, we get 4 with a remainder of 58.
The number 4 becomes the next digit in our result. 
Result so far: 1214644.0
The remainder is 58 after subtracting 240 from 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 9:
580 divided by 60 is 9 with a remainder of 40.
Record the quotient 9 as the next digit in the result. 
Result so far: 1214644.9
Deduct 540 from 580 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
When dividing 400 by 60, we get 6 with a remainder of 40.
Put 6 as the next digit of the answer. 
Result so far: 1214644.96
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 11:
If we divide 400 by 60, we get 6 and a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 1214644.966
Subtracting 360 from 400 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 1214644.966 with a remainder of 0.004.