65145783 ÷ 654 
The aim is to understand the frequency of 654 in 65145783.

Step 1:
6 divided by 654 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 654

Let's proceed to step 2:
654 goes into 65 0 times with a remainder of 65.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 65, we get 65.
Grab the next digit (1) from the dividend, add it to 65, then carry on: 651 / 654

Step 3:
If we divide 651 by 654, we get 0 and a remainder of 651.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 651 after subtracting 0 from 651.
Bring next digit (4) of the dividend behind the 651 and repeat the process: 6514 / 654

Let's proceed to step 4:
654 goes into 6514 9 times with a remainder of 628.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtracting 5886 from 6514 leaves us with 628.
Fetch the next digit (5) from the dividend, attach it to 628 and continue: 6285 / 654

Advancing to step 5:
654 can be fit into 6285 9 times, resulting in a remainder of 399.
Put 9 as the next digit of the answer. 
Result so far: 99.0
If we subtract 5886 from 6285, we get 399.
Bring next digit (7) of the dividend behind the 399 and repeat the process: 3997 / 654

Moving on to step 6:
When dividing 3997 by 654, we get 6 with a remainder of 73.
Use 6 as the next digit of our solution. 
Result so far: 996.0
Deduct 3924 from 3997 and we're left with 73.
Grab the next digit (8) from the dividend, add it to 73, then carry on: 738 / 654

Moving on to step 7:
738 divided by 654 is 1 with a remainder of 84.
Write down 1 as next digit of the result. 
Result so far: 9961.0
Deduct 654 from 738 and we're left with 84.
Grab the next digit (3) from the dividend, add it to 84, then carry on: 843 / 654

Advancing to step 8:
The number 654 fits into 843 1 times, leaving a remainder of 189.
Record the quotient 1 as the next digit in the result. 
Result so far: 99611.0
The remainder is 189 after subtracting 654 from 843.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

Let's proceed to step 9:
If we divide 1890 by 654, we get 2 and a remainder of 582.
The number 2 becomes the next digit in our result. 
Result so far: 99611.2
The remainder is 582 after subtracting 1308 from 1890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

On to step 10:
5820 divided by 654 is 8 with a remainder of 588.
Use 8 as the next digit of our solution. 
Result so far: 99611.28
If we take 5232 away from 5820, we end up with 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

Step 11:
654 goes into 5880 8 times with a remainder of 648.
Put 8 as the next digit of the answer. 
Result so far: 99611.288
Deduct 5232 from 5880 and we're left with 648.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6480, and continue the process.

After the division, we end up with 99611.288 and a remainder of 0.0648.