We're dividing 785401 by 16 
The aim is to understand the frequency of 16 in 785401.

Advancing to step 1:
16 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 16

Advancing to step 2:
16 can be fit into 78 4 times, resulting in a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 14 after subtracting 64 from 78.
Take the next digit (5) from the dividend and append it to 14, then repeat: 145 / 16

Let's proceed to step 3:
If we divide 145 by 16, we get 9 and a remainder of 1.
The next digit of our result is 9. 
Result so far: 49.0
Deduct 144 from 145 and we're left with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 16

Step 4:
16 can be fit into 14 0 times, resulting in a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 490.0
If we subtract 0 from 14, we get 14.
Include the next digit (0) from the dividend after 14, then repeat: 140 / 16

Let's proceed to step 5:
16 goes into 140 8 times with a remainder of 12.
The next digit of our result is 8. 
Result so far: 4908.0
Subtracting 128 from 140 leaves us with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 16

On to step 6:
16 goes into 121 7 times with a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 49087.0
The remainder is 9 after subtracting 112 from 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
16 can be fit into 90 5 times, resulting in a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 49087.5
If we take 80 away from 90, we end up 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.

Step 8:
When dividing 100 by 16, we get 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 49087.56
Subtracting 96 from 100 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
When dividing 40 by 16, we get 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 49087.562
The remainder is 8 after subtracting 32 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
16 goes into 80 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 49087.5625
Subtract 80 from 80 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 11:
The number 16 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 49087.5625
If we subtract 0 from 0, we get 0.
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 12:
0 divided by 16 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 49087.5625
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.

After the division, we end up with 49087.5625 and a remainder of 0.0.