71629159 ÷ 16 
The aim is to understand the frequency of 16 in 71629159.

Step 1:
16 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 16

On to step 2:
When dividing 71 by 16, we get 4 with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 64 away from 71, we end up with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 16

Going ahead to step 3:
When dividing 76 by 16, we get 4 with a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 44.0
The remainder is 12 after subtracting 64 from 76.
Take the next digit (2) from the dividend and append it to 12, then repeat: 122 / 16

On to step 4:
If we divide 122 by 16, we get 7 and a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 447.0
Subtract 112 from 122 to get 10.
Take the next digit (9) from the dividend and append it to 10, then repeat: 109 / 16

On to step 5:
The number 16 fits into 109 6 times, leaving a remainder of 13.
Use 6 as the next digit of our solution. 
Result so far: 4476.0
Subtracting 96 from 109 leaves us with 13.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 16

Moving on to step 6:
If we divide 131 by 16, we get 8 and a remainder of 3.
The next digit of our result is 8. 
Result so far: 44768.0
If we take 128 away from 131, we end up with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 16

Going ahead to step 7:
16 goes into 35 2 times with a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 447682.0
The remainder is 3 after subtracting 32 from 35.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 16

Going ahead to step 8:
16 goes into 39 2 times with a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 4476822.0
The remainder is 7 after subtracting 32 from 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 9:
70 divided by 16 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 4476822.4
Subtracting 64 from 70 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
16 can be fit into 60 3 times, resulting in a remainder of 12.
The next digit of our result is 3. 
Result so far: 4476822.43
The remainder is 12 after subtracting 48 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 11:
The number 16 fits into 120 7 times, leaving a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 4476822.437
If we subtract 112 from 120, we get 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 12:
The number 16 fits into 80 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 4476822.4375
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.

Let's proceed to step 13:
If we divide 0 by 16, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4476822.4375
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.

Let's proceed to step 14:
0 divided by 16 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4476822.4375
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.

After the division, we end up with 4476822.4375 and a remainder of 0.0.