We divide 74511578 by 11
The aim is to understand the frequency of 11 in 74511578.

Moving on to step 1:
When dividing 7 by 11, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 11

Advancing to step 2:
74 divided by 11 is 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 66 from 74, we get 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 11

Advancing to step 3:
85 divided by 11 is 7 with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 67.0
Deduct 77 from 85 and we're left with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 11

On to step 4:
11 goes into 81 7 times with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 677.0
If we subtract 77 from 81, we get 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 11

Advancing to step 5:
41 divided by 11 is 3 with a remainder of 8.
Write down 3 as next digit of the result. 
Result so far: 6773.0
If we take 33 away from 41, we end up with 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 11

On to step 6:
11 can be fit into 85 7 times, resulting in a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 67737.0
Subtract 77 from 85 to get 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 11

Advancing to step 7:
If we divide 87 by 11, we get 7 and a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 677377.0
Subtract 77 from 87 to get 10.
Take the next digit (8) from the dividend and append it to 10, then repeat: 108 / 11

On to step 8:
11 can be fit into 108 9 times, resulting in a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 6773779.0
If we take 99 away from 108, we end up with 9.
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 9:
90 divided by 11 is 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 6773779.8
The remainder is 2 after subtracting 88 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 10:
The number 11 fits into 20 1 times, leaving a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 6773779.81
Subtracting 11 from 20 leaves us with 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 11:
11 can be fit into 90 8 times, resulting in a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 6773779.818
Subtracting 88 from 90 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 12:
When dividing 20 by 11, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 6773779.8181
The remainder is 9 after subtracting 11 from 20.
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 13:
If we divide 90 by 11, we get 8 and a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 6773779.81818
The remainder is 2 after subtracting 88 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 14:
11 can be fit into 20 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 6773779.818181
Subtracting 11 from 20 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 15:
11 goes into 90 8 times with a remainder of 2.
The next digit of our result is 8. 
Result so far: 6773779.8181818
The remainder is 2 after subtracting 88 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 16:
If we divide 20 by 11, we get 1 and a remainder of 9.
The next digit of our result is 1. 
Result so far: 6773779.81818181
Deduct 11 from 20 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The final result is 6773779.81818181 with a remainder of 9e-09.