We're dividing 945691 by 16 
The aim is to understand the frequency of 16 in 945691.

On to step 1:
The number 16 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (4) from the dividend, attach it to 9 and continue: 94 / 16

Step 2:
16 can be fit into 94 5 times, resulting in a remainder of 14.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 80 away from 94, we end up with 14.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 16

Going ahead to step 3:
16 goes into 145 9 times with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 59.0
The remainder is 1 after subtracting 144 from 145.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 16

Moving on to step 4:
16 goes into 16 1 times with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 591.0
If we subtract 16 from 16, we get 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 16

Let's proceed to step 5:
If we divide 9 by 16, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 5910.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 16

Going ahead to step 6:
When dividing 91 by 16, we get 5 with a remainder of 11.
Write down 5 as next digit of the result. 
Result so far: 59105.0
The remainder is 11 after subtracting 80 from 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
16 can be fit into 110 6 times, resulting in a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 59105.6
Subtract 96 from 110 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 8:
The number 16 fits into 140 8 times, leaving a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 59105.68
Subtract 128 from 140 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
16 can be fit into 120 7 times, resulting in a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 59105.687
Subtracting 112 from 120 leaves us 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.

Advancing to step 10:
When dividing 80 by 16, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 59105.6875
The remainder is 0 after subtracting 80 from 80.
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 11:
16 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 59105.6875
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.

Advancing to step 12:
16 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 59105.6875
Subtract 0 from 0 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.

The quotient of the division is 59105.6875, and the remainder is 0.0.