66216551 ÷ 546 
The aim is to understand the frequency of 546 in 66216551.

On to step 1:
The number 546 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 546

On to step 2:
The number 546 fits into 66 0 times, leaving a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Fetch the next digit (2) from the dividend, attach it to 66 and continue: 662 / 546

Going ahead to step 3:
When dividing 662 by 546, we get 1 with a remainder of 116.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 116 after subtracting 546 from 662.
Fetch the next digit (1) from the dividend, attach it to 116 and continue: 1161 / 546

On to step 4:
If we divide 1161 by 546, we get 2 and a remainder of 69.
Write down 2 as next digit of the result. 
Result so far: 12.0
Deduct 1092 from 1161 and we're left with 69.
Take the next digit (6) from the dividend and append it to 69, then repeat: 696 / 546

Advancing to step 5:
The number 546 fits into 696 1 times, leaving a remainder of 150.
The next digit of our result is 1. 
Result so far: 121.0
Deduct 546 from 696 and we're left with 150.
Fetch the next digit (5) from the dividend, attach it to 150 and continue: 1505 / 546

Advancing to step 6:
1505 divided by 546 is 2 with a remainder of 413.
Write down 2 as next digit of the result. 
Result so far: 1212.0
The remainder is 413 after subtracting 1092 from 1505.
Bring next digit (5) of the dividend behind the 413 and repeat the process: 4135 / 546

Advancing to step 7:
If we divide 4135 by 546, we get 7 and a remainder of 313.
Write down 7 as next digit of the result. 
Result so far: 12127.0
Subtracting 3822 from 4135 leaves us with 313.
Take the next digit (1) from the dividend and append it to 313, then repeat: 3131 / 546

Advancing to step 8:
When dividing 3131 by 546, we get 5 with a remainder of 401.
Put 5 as the next digit of the answer. 
Result so far: 121275.0
Deduct 2730 from 3131 and we're left with 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Going ahead to step 9:
4010 divided by 546 is 7 with a remainder of 188.
Record the quotient 7 as the next digit in the result. 
Result so far: 121275.7
If we subtract 3822 from 4010, we get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

On to step 10:
546 can be fit into 1880 3 times, resulting in a remainder of 242.
Put 3 as the next digit of the answer. 
Result so far: 121275.73
Subtract 1638 from 1880 to get 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

On to step 11:
When dividing 2420 by 546, we get 4 with a remainder of 236.
Put 4 as the next digit of the answer. 
Result so far: 121275.734
The remainder is 236 after subtracting 2184 from 2420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Step 12:
The number 546 fits into 2360 4 times, leaving a remainder of 176.
Record the quotient 4 as the next digit in the result. 
Result so far: 121275.7344
Deduct 2184 from 2360 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

In conclusion, the division gives 121275.7344 with a balance of 0.00176.