53891666 ÷ 664 
The aim is to understand the frequency of 664 in 53891666.

Let's proceed to step 1:
5 divided by 664 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 664

Going ahead to step 2:
When dividing 53 by 664, we get 0 with a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Bring next digit (8) of the dividend behind the 53 and repeat the process: 538 / 664

Let's proceed to step 3:
664 goes into 538 0 times with a remainder of 538.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 538 leaves us with 538.
Take the next digit (9) from the dividend and append it to 538, then repeat: 5389 / 664

Step 4:
664 goes into 5389 8 times with a remainder of 77.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 5312 from 5389 to get 77.
Fetch the next digit (1) from the dividend, attach it to 77 and continue: 771 / 664

Going ahead to step 5:
771 divided by 664 is 1 with a remainder of 107.
Use 1 as the next digit of our solution. 
Result so far: 81.0
The remainder is 107 after subtracting 664 from 771.
Bring next digit (6) of the dividend behind the 107 and repeat the process: 1076 / 664

Let's proceed to step 6:
If we divide 1076 by 664, we get 1 and a remainder of 412.
Use 1 as the next digit of our solution. 
Result so far: 811.0
If we subtract 664 from 1076, we get 412.
Include the next digit (6) from the dividend after 412, then repeat: 4126 / 664

Moving on to step 7:
If we divide 4126 by 664, we get 6 and a remainder of 142.
Use 6 as the next digit of our solution. 
Result so far: 8116.0
Deduct 3984 from 4126 and we're left with 142.
Bring next digit (6) of the dividend behind the 142 and repeat the process: 1426 / 664

Moving on to step 8:
If we divide 1426 by 664, we get 2 and a remainder of 98.
Write down 2 as next digit of the result. 
Result so far: 81162.0
If we subtract 1328 from 1426, we get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Advancing to step 9:
If we divide 980 by 664, we get 1 and a remainder of 316.
Put 1 as the next digit of the answer. 
Result so far: 81162.1
Subtracting 664 from 980 leaves us with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Going ahead to step 10:
If we divide 3160 by 664, we get 4 and a remainder of 504.
Record the quotient 4 as the next digit in the result. 
Result so far: 81162.14
The remainder is 504 after subtracting 2656 from 3160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Let's proceed to step 11:
The number 664 fits into 5040 7 times, leaving a remainder of 392.
Put 7 as the next digit of the answer. 
Result so far: 81162.147
If we subtract 4648 from 5040, we get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Advancing to step 12:
When dividing 3920 by 664, we get 5 with a remainder of 600.
The next digit of our result is 5. 
Result so far: 81162.1475
The remainder is 600 after subtracting 3320 from 3920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Going ahead to step 13:
6000 divided by 664 is 9 with a remainder of 24.
Write down 9 as next digit of the result. 
Result so far: 81162.14759
Subtracting 5976 from 6000 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 14:
The number 664 fits into 240 0 times, leaving a remainder of 240.
The next digit of our result is 0. 
Result so far: 81162.14759
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 15:
2400 divided by 664 is 3 with a remainder of 408.
Write down 3 as next digit of the result. 
Result so far: 81162.1475903
Subtract 1992 from 2400 to get 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Going ahead to step 16:
When dividing 4080 by 664, we get 6 with a remainder of 96.
Put 6 as the next digit of the answer. 
Result so far: 81162.14759036
Subtract 3984 from 4080 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

In conclusion, the division gives 81162.14759036 with a balance of 9.6e-08.