We look at the division of 406901 by 64 
The aim is to understand the frequency of 64 in 406901.

Let's proceed to step 1:
64 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 64

On to step 2:
64 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Grab the next digit (6) from the dividend, add it to 40, then carry on: 406 / 64

Advancing to step 3:
The number 64 fits into 406 6 times, leaving a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 384 from 406 to get 22.
Append the next digit (9) from the dividend to 22 and continue with: 229 / 64

Moving on to step 4:
64 goes into 229 3 times with a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
If we take 192 away from 229, we end up with 37.
Append the next digit (0) from the dividend to 37 and continue with: 370 / 64

Moving on to step 5:
64 can be fit into 370 5 times, resulting in a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 635.0
The remainder is 50 after subtracting 320 from 370.
Take the next digit (1) from the dividend and append it to 50, then repeat: 501 / 64

Advancing to step 6:
64 goes into 501 7 times with a remainder of 53.
Write down 7 as next digit of the result. 
Result so far: 6357.0
If we subtract 448 from 501, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Advancing to step 7:
If we divide 530 by 64, we get 8 and a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 6357.8
Deduct 512 from 530 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 8:
When dividing 180 by 64, we get 2 with a remainder of 52.
The next digit of our result is 2. 
Result so far: 6357.82
The remainder is 52 after subtracting 128 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 9:
64 goes into 520 8 times with a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 6357.828
Deduct 512 from 520 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
If we divide 80 by 64, we get 1 and a remainder of 16.
Write down 1 as next digit of the result. 
Result so far: 6357.8281
If we subtract 64 from 80, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 11:
The number 64 fits into 160 2 times, leaving a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 6357.82812
Subtract 128 from 160 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 12:
The number 64 fits into 320 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 6357.828125
The remainder is 0 after subtracting 320 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 13:
When dividing 0 by 64, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 6357.828125
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 14:
The number 64 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 6357.828125
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 6357.828125 with a remaining 0.0.