We're dividing 66910188 by 738 
The aim is to understand the frequency of 738 in 66910188.

Step 1:
When dividing 6 by 738, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 738

Step 2:
If we divide 66 by 738, we get 0 and a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Append the next digit (9) from the dividend to 66 and continue with: 669 / 738

On to step 3:
738 goes into 669 0 times with a remainder of 669.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 669 after subtracting 0 from 669.
Bring next digit (1) of the dividend behind the 669 and repeat the process: 6691 / 738

Going ahead to step 4:
If we divide 6691 by 738, we get 9 and a remainder of 49.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 6642 away from 6691, we end up with 49.
Grab the next digit (0) from the dividend, add it to 49, then carry on: 490 / 738

Step 5:
When dividing 490 by 738, we get 0 with a remainder of 490.
The number 0 becomes the next digit in our result. 
Result so far: 90.0
Subtract 0 from 490 to get 490.
Grab the next digit (1) from the dividend, add it to 490, then carry on: 4901 / 738

Moving on to step 6:
738 can be fit into 4901 6 times, resulting in a remainder of 473.
The number 6 becomes the next digit in our result. 
Result so far: 906.0
If we take 4428 away from 4901, we end up with 473.
Grab the next digit (8) from the dividend, add it to 473, then carry on: 4738 / 738

On to step 7:
738 goes into 4738 6 times with a remainder of 310.
Record the quotient 6 as the next digit in the result. 
Result so far: 9066.0
If we subtract 4428 from 4738, we get 310.
Append the next digit (8) from the dividend to 310 and continue with: 3108 / 738

Step 8:
3108 divided by 738 is 4 with a remainder of 156.
Use 4 as the next digit of our solution. 
Result so far: 90664.0
Deduct 2952 from 3108 and we're left with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Let's proceed to step 9:
The number 738 fits into 1560 2 times, leaving a remainder of 84.
Record the quotient 2 as the next digit in the result. 
Result so far: 90664.2
Subtract 1476 from 1560 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 10:
When dividing 840 by 738, we get 1 with a remainder of 102.
Put 1 as the next digit of the answer. 
Result so far: 90664.21
Deduct 738 from 840 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Let's proceed to step 11:
1020 divided by 738 is 1 with a remainder of 282.
Use 1 as the next digit of our solution. 
Result so far: 90664.211
The remainder is 282 after subtracting 738 from 1020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Our division results in 90664.211 with a remaining 0.0282.