361601 ÷ 64 
The aim is to understand the frequency of 64 in 361601.

Step 1:
When dividing 3 by 64, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 64

Let's proceed to step 2:
If we divide 36 by 64, we get 0 and a remainder of 36.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 36, we end up with 36.
Take the next digit (1) from the dividend and append it to 36, then repeat: 361 / 64

Step 3:
The number 64 fits into 361 5 times, leaving a remainder of 41.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 320 from 361 and we're left with 41.
Include the next digit (6) from the dividend after 41, then repeat: 416 / 64

On to step 4:
416 divided by 64 is 6 with a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 56.0
Subtract 384 from 416 to get 32.
Grab the next digit (0) from the dividend, add it to 32, then carry on: 320 / 64

Advancing to step 5:
The number 64 fits into 320 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 565.0
If we subtract 320 from 320, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 64

Moving on to step 6:
The number 64 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 5650.0
If we take 0 away from 1, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
When dividing 10 by 64, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 5650.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
If we divide 100 by 64, we get 1 and a remainder of 36.
Record the quotient 1 as the next digit in the result. 
Result so far: 5650.01
If we subtract 64 from 100, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 9:
360 divided by 64 is 5 with a remainder of 40.
Use 5 as the next digit of our solution. 
Result so far: 5650.015
Subtract 320 from 360 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
400 divided by 64 is 6 with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 5650.0156
If we take 384 away from 400, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 11:
160 divided by 64 is 2 with a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 5650.01562
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.

On to step 12:
When dividing 320 by 64, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 5650.015625
Deduct 320 from 320 and we're left 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.

Moving on to step 13:
The number 64 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5650.015625
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 14:
The number 64 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 5650.015625
Deduct 0 from 0 and we're left 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.

The final outcome is 5650.015625, with a leftover of 0.0.