86250972 ÷ 60 
The aim is to understand the frequency of 60 in 86250972.

On to step 1:
8 divided by 60 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 60

Let's proceed to step 2:
The number 60 fits into 86 1 times, leaving a remainder of 26.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 26 after subtracting 60 from 86.
Take the next digit (2) from the dividend and append it to 26, then repeat: 262 / 60

Moving on to step 3:
The number 60 fits into 262 4 times, leaving a remainder of 22.
The next digit of our result is 4. 
Result so far: 14.0
The remainder is 22 after subtracting 240 from 262.
Bring next digit (5) of the dividend behind the 22 and repeat the process: 225 / 60

Moving on to step 4:
The number 60 fits into 225 3 times, leaving a remainder of 45.
Write down 3 as next digit of the result. 
Result so far: 143.0
Subtracting 180 from 225 leaves us with 45.
Include the next digit (0) from the dividend after 45, then repeat: 450 / 60

On to step 5:
60 goes into 450 7 times with a remainder of 30.
The number 7 becomes the next digit in our result. 
Result so far: 1437.0
Deduct 420 from 450 and we're left with 30.
Grab the next digit (9) from the dividend, add it to 30, then carry on: 309 / 60

On to step 6:
When dividing 309 by 60, we get 5 with a remainder of 9.
Record the quotient 5 as the next digit in the result. 
Result so far: 14375.0
If we subtract 300 from 309, we get 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 60

Let's proceed to step 7:
60 can be fit into 97 1 times, resulting in a remainder of 37.
Record the quotient 1 as the next digit in the result. 
Result so far: 143751.0
If we take 60 away from 97, we end up with 37.
Include the next digit (2) from the dividend after 37, then repeat: 372 / 60

Step 8:
60 goes into 372 6 times with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 1437516.0
Deduct 360 from 372 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
120 divided by 60 is 2 with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 1437516.2
Subtract 120 from 120 to get 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:
60 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1437516.2
Deduct 0 from 0 and we're left 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.

On to step 11:
If we divide 0 by 60, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1437516.2
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 1437516.2 with a remaining 0.0.