We divide 64846686 by 451
The aim is to understand the frequency of 451 in 64846686.

Moving on to step 1:
451 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 451

Moving on to step 2:
If we divide 64 by 451, we get 0 and a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Fetch the next digit (8) from the dividend, attach it to 64 and continue: 648 / 451

Step 3:
The number 451 fits into 648 1 times, leaving a remainder of 197.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 451 from 648, we get 197.
Include the next digit (4) from the dividend after 197, then repeat: 1974 / 451

Going ahead to step 4:
The number 451 fits into 1974 4 times, leaving a remainder of 170.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Subtract 1804 from 1974 to get 170.
Fetch the next digit (6) from the dividend, attach it to 170 and continue: 1706 / 451

Step 5:
1706 divided by 451 is 3 with a remainder of 353.
Write down 3 as next digit of the result. 
Result so far: 143.0
If we subtract 1353 from 1706, we get 353.
Append the next digit (6) from the dividend to 353 and continue with: 3536 / 451

Step 6:
451 can be fit into 3536 7 times, resulting in a remainder of 379.
The number 7 becomes the next digit in our result. 
Result so far: 1437.0
If we take 3157 away from 3536, we end up with 379.
Take the next digit (8) from the dividend and append it to 379, then repeat: 3798 / 451

Step 7:
451 goes into 3798 8 times with a remainder of 190.
Record the quotient 8 as the next digit in the result. 
Result so far: 14378.0
Subtract 3608 from 3798 to get 190.
Fetch the next digit (6) from the dividend, attach it to 190 and continue: 1906 / 451

Step 8:
1906 divided by 451 is 4 with a remainder of 102.
Put 4 as the next digit of the answer. 
Result so far: 143784.0
Subtract 1804 from 1906 to get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

On to step 9:
The number 451 fits into 1020 2 times, leaving a remainder of 118.
Write down 2 as next digit of the result. 
Result so far: 143784.2
The remainder is 118 after subtracting 902 from 1020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Let's proceed to step 10:
451 can be fit into 1180 2 times, resulting in a remainder of 278.
The next digit of our result is 2. 
Result so far: 143784.22
Deduct 902 from 1180 and we're left with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

The quotient of the division is 143784.22, and the remainder is 0.278.