We divide 37666661 by 396
The aim is to understand the frequency of 396 in 37666661.

On to step 1:
When dividing 3 by 396, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 396

Step 2:
If we divide 37 by 396, we get 0 and a remainder of 37.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 37 to get 37.
Bring next digit (6) of the dividend behind the 37 and repeat the process: 376 / 396

Advancing to step 3:
396 can be fit into 376 0 times, resulting in a remainder of 376.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 376, we get 376.
Take the next digit (6) from the dividend and append it to 376, then repeat: 3766 / 396

Let's proceed to step 4:
If we divide 3766 by 396, we get 9 and a remainder of 202.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
The remainder is 202 after subtracting 3564 from 3766.
Take the next digit (6) from the dividend and append it to 202, then repeat: 2026 / 396

Let's proceed to step 5:
If we divide 2026 by 396, we get 5 and a remainder of 46.
The next digit of our result is 5. 
Result so far: 95.0
If we take 1980 away from 2026, we end up with 46.
Fetch the next digit (6) from the dividend, attach it to 46 and continue: 466 / 396

Step 6:
396 can be fit into 466 1 times, resulting in a remainder of 70.
Use 1 as the next digit of our solution. 
Result so far: 951.0
Subtracting 396 from 466 leaves us with 70.
Append the next digit (6) from the dividend to 70 and continue with: 706 / 396

Moving on to step 7:
When dividing 706 by 396, we get 1 with a remainder of 310.
The next digit of our result is 1. 
Result so far: 9511.0
If we subtract 396 from 706, we get 310.
Take the next digit (1) from the dividend and append it to 310, then repeat: 3101 / 396

Advancing to step 8:
396 can be fit into 3101 7 times, resulting in a remainder of 329.
The number 7 becomes the next digit in our result. 
Result so far: 95117.0
Deduct 2772 from 3101 and we're left with 329.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

On to step 9:
The number 396 fits into 3290 8 times, leaving a remainder of 122.
Put 8 as the next digit of the answer. 
Result so far: 95117.8
If we take 3168 away from 3290, we end up with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Let's proceed to step 10:
1220 divided by 396 is 3 with a remainder of 32.
Record the quotient 3 as the next digit in the result. 
Result so far: 95117.83
The remainder is 32 after subtracting 1188 from 1220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 11:
The number 396 fits into 320 0 times, leaving a remainder of 320.
The number 0 becomes the next digit in our result. 
Result so far: 95117.83
Subtracting 0 from 320 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 12:
The number 396 fits into 3200 8 times, leaving a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 95117.8308
Subtracting 3168 from 3200 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 13:
When dividing 320 by 396, we get 0 with a remainder of 320.
Write down 0 as next digit of the result. 
Result so far: 95117.8308
Subtract 0 from 320 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 14:
3200 divided by 396 is 8 with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 95117.830808
Subtracting 3168 from 3200 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 15:
If we divide 320 by 396, we get 0 and a remainder of 320.
The number 0 becomes the next digit in our result. 
Result so far: 95117.830808
Subtract 0 from 320 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 16:
The number 396 fits into 3200 8 times, leaving a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 95117.83080808
If we subtract 3168 from 3200, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 95117.83080808 with a remainder of 3.2e-08.