687193 ÷ 16 
The aim is to understand the frequency of 16 in 687193.

Going ahead to step 1:
If we divide 6 by 16, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 16

On to step 2:
16 can be fit into 68 4 times, resulting in a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 64 from 68 leaves us with 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 16

Moving on to step 3:
47 divided by 16 is 2 with a remainder of 15.
Use 2 as the next digit of our solution. 
Result so far: 42.0
Subtract 32 from 47 to get 15.
Bring next digit (1) of the dividend behind the 15 and repeat the process: 151 / 16

On to step 4:
16 can be fit into 151 9 times, resulting in a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 429.0
If we subtract 144 from 151, we get 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 16

On to step 5:
16 can be fit into 79 4 times, resulting in a remainder of 15.
The next digit of our result is 4. 
Result so far: 4294.0
Subtracting 64 from 79 leaves us with 15.
Bring next digit (3) of the dividend behind the 15 and repeat the process: 153 / 16

Advancing to step 6:
153 divided by 16 is 9 with a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 42949.0
If we subtract 144 from 153, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 7:
When dividing 90 by 16, we get 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 42949.5
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.

Moving on to step 8:
100 divided by 16 is 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 42949.56
Subtract 96 from 100 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
When dividing 40 by 16, we get 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 42949.562
Deduct 32 from 40 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.

Step 10:
If we divide 80 by 16, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 42949.5625
If we take 80 away from 80, 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.

Advancing to step 11:
16 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 42949.5625
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.

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: 42949.5625
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.

The quotient of the division is 42949.5625, and the remainder is 0.0.