We look at the division of 66107579 by 451 
The aim is to understand the frequency of 451 in 66107579.

On to step 1:
451 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 451

On to step 2:
451 can be fit into 66 0 times, resulting in a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Include the next digit (1) from the dividend after 66, then repeat: 661 / 451

Advancing to step 3:
When dividing 661 by 451, we get 1 with a remainder of 210.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 451 from 661 leaves us with 210.
Fetch the next digit (0) from the dividend, attach it to 210 and continue: 2100 / 451

Moving on to step 4:
When dividing 2100 by 451, we get 4 with a remainder of 296.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Subtracting 1804 from 2100 leaves us with 296.
Take the next digit (7) from the dividend and append it to 296, then repeat: 2967 / 451

Let's proceed to step 5:
451 can be fit into 2967 6 times, resulting in a remainder of 261.
Use 6 as the next digit of our solution. 
Result so far: 146.0
If we subtract 2706 from 2967, we get 261.
Bring next digit (5) of the dividend behind the 261 and repeat the process: 2615 / 451

On to step 6:
If we divide 2615 by 451, we get 5 and a remainder of 360.
Record the quotient 5 as the next digit in the result. 
Result so far: 1465.0
Deduct 2255 from 2615 and we're left with 360.
Fetch the next digit (7) from the dividend, attach it to 360 and continue: 3607 / 451

Moving on to step 7:
451 can be fit into 3607 7 times, resulting in a remainder of 450.
The next digit of our result is 7. 
Result so far: 14657.0
If we subtract 3157 from 3607, we get 450.
Append the next digit (9) from the dividend to 450 and continue with: 4509 / 451

On to step 8:
451 can be fit into 4509 9 times, resulting in a remainder of 450.
Write down 9 as next digit of the result. 
Result so far: 146579.0
Deduct 4059 from 4509 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

On to step 9:
When dividing 4500 by 451, we get 9 with a remainder of 441.
The next digit of our result is 9. 
Result so far: 146579.9
Deduct 4059 from 4500 and we're left with 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Let's proceed to step 10:
When dividing 4410 by 451, we get 9 with a remainder of 351.
Use 9 as the next digit of our solution. 
Result so far: 146579.99
Subtract 4059 from 4410 to get 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

In conclusion, the division gives 146579.99 with a balance of 0.351.