We divide 90580702 by 16
The aim is to understand the frequency of 16 in 90580702.

Advancing to step 1:
16 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 16

Advancing to step 2:
If we divide 90 by 16, we get 5 and a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 80 from 90 to get 10.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 16

Step 3:
If we divide 105 by 16, we get 6 and a remainder of 9.
Write down 6 as next digit of the result. 
Result so far: 56.0
If we take 96 away from 105, we end up with 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 16

Let's proceed to step 4:
When dividing 98 by 16, we get 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 566.0
Deduct 96 from 98 and we're left with 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 16

Step 5:
When dividing 20 by 16, we get 1 with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 5661.0
If we subtract 16 from 20, we get 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 16

Going ahead to step 6:
16 can be fit into 47 2 times, resulting in a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 56612.0
Deduct 32 from 47 and we're left with 15.
Append the next digit (0) from the dividend to 15 and continue with: 150 / 16

Step 7:
16 goes into 150 9 times with a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 566129.0
Subtract 144 from 150 to get 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 16

Advancing to step 8:
16 can be fit into 62 3 times, resulting in a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 5661293.0
The remainder is 14 after subtracting 48 from 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 9:
16 goes into 140 8 times with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 5661293.8
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.

Going ahead to step 10:
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: 5661293.87
If we take 112 away from 120, we end up 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.

Let's proceed to step 11:
16 goes into 80 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 5661293.875
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.

Advancing to step 12:
16 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5661293.875
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 13:
If we divide 0 by 16, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5661293.875
Subtracting 0 from 0 leaves us 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 5661293.875 and a remainder of 0.0.