51765089 ÷ 60 
The aim is to understand the frequency of 60 in 51765089.

Let's proceed to step 1:
When dividing 5 by 60, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 60

Step 2:
If we divide 51 by 60, we get 0 and a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Take the next digit (7) from the dividend and append it to 51, then repeat: 517 / 60

Advancing to step 3:
The number 60 fits into 517 8 times, leaving a remainder of 37.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 480 from 517 to get 37.
Grab the next digit (6) from the dividend, add it to 37, then carry on: 376 / 60

Advancing to step 4:
60 can be fit into 376 6 times, resulting in a remainder of 16.
The next digit of our result is 6. 
Result so far: 86.0
The remainder is 16 after subtracting 360 from 376.
Bring next digit (5) of the dividend behind the 16 and repeat the process: 165 / 60

On to step 5:
If we divide 165 by 60, we get 2 and a remainder of 45.
Write down 2 as next digit of the result. 
Result so far: 862.0
If we take 120 away from 165, we end up with 45.
Append the next digit (0) from the dividend to 45 and continue with: 450 / 60

Going ahead to step 6:
60 goes into 450 7 times with a remainder of 30.
The number 7 becomes the next digit in our result. 
Result so far: 8627.0
Subtracting 420 from 450 leaves us with 30.
Append the next digit (8) from the dividend to 30 and continue with: 308 / 60

Step 7:
If we divide 308 by 60, we get 5 and a remainder of 8.
The number 5 becomes the next digit in our result. 
Result so far: 86275.0
Deduct 300 from 308 and we're left with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 60

Going ahead to step 8:
60 can be fit into 89 1 times, resulting in a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 862751.0
If we take 60 away from 89, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 9:
60 can be fit into 290 4 times, resulting in a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 862751.4
Subtracting 240 from 290 leaves us 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.

Going ahead to step 10:
60 goes into 500 8 times with a remainder of 20.
Record the quotient 8 as the next digit in the result. 
Result so far: 862751.48
The remainder is 20 after subtracting 480 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 11:
If we divide 200 by 60, we get 3 and a remainder of 20.
Record the quotient 3 as the next digit in the result. 
Result so far: 862751.483
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.

Moving on to step 12:
200 divided by 60 is 3 with a remainder of 20.
The next digit of our result is 3. 
Result so far: 862751.4833
Subtracting 180 from 200 leaves us 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 862751.4833, with a leftover of 0.0002.