56687944 ÷ 396 
The aim is to understand the frequency of 396 in 56687944.

On to step 1:
396 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 396

On to step 2:
396 can be fit into 56 0 times, resulting in a remainder of 56.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 56 to get 56.
Bring next digit (6) of the dividend behind the 56 and repeat the process: 566 / 396

Let's proceed to step 3:
If we divide 566 by 396, we get 1 and a remainder of 170.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 170 after subtracting 396 from 566.
Bring next digit (8) of the dividend behind the 170 and repeat the process: 1708 / 396

On to step 4:
The number 396 fits into 1708 4 times, leaving a remainder of 124.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtracting 1584 from 1708 leaves us with 124.
Grab the next digit (7) from the dividend, add it to 124, then carry on: 1247 / 396

Advancing to step 5:
If we divide 1247 by 396, we get 3 and a remainder of 59.
Use 3 as the next digit of our solution. 
Result so far: 143.0
Deduct 1188 from 1247 and we're left with 59.
Take the next digit (9) from the dividend and append it to 59, then repeat: 599 / 396

Going ahead to step 6:
396 goes into 599 1 times with a remainder of 203.
Use 1 as the next digit of our solution. 
Result so far: 1431.0
Deduct 396 from 599 and we're left with 203.
Append the next digit (4) from the dividend to 203 and continue with: 2034 / 396

Advancing to step 7:
The number 396 fits into 2034 5 times, leaving a remainder of 54.
Record the quotient 5 as the next digit in the result. 
Result so far: 14315.0
Subtracting 1980 from 2034 leaves us with 54.
Bring next digit (4) of the dividend behind the 54 and repeat the process: 544 / 396

On to step 8:
544 divided by 396 is 1 with a remainder of 148.
The number 1 becomes the next digit in our result. 
Result so far: 143151.0
Subtract 396 from 544 to get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

On to step 9:
The number 396 fits into 1480 3 times, leaving a remainder of 292.
The number 3 becomes the next digit in our result. 
Result so far: 143151.3
If we take 1188 away from 1480, we end up with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Going ahead to step 10:
The number 396 fits into 2920 7 times, leaving a remainder of 148.
Write down 7 as next digit of the result. 
Result so far: 143151.37
If we subtract 2772 from 2920, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Going ahead to step 11:
1480 divided by 396 is 3 with a remainder of 292.
Use 3 as the next digit of our solution. 
Result so far: 143151.373
Subtracting 1188 from 1480 leaves us with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Moving on to step 12:
2920 divided by 396 is 7 with a remainder of 148.
Record the quotient 7 as the next digit in the result. 
Result so far: 143151.3737
If we subtract 2772 from 2920, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

On to step 13:
1480 divided by 396 is 3 with a remainder of 292.
Use 3 as the next digit of our solution. 
Result so far: 143151.37373
Deduct 1188 from 1480 and we're left with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

On to step 14:
396 can be fit into 2920 7 times, resulting in a remainder of 148.
Use 7 as the next digit of our solution. 
Result so far: 143151.373737
Subtracting 2772 from 2920 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Step 15:
396 goes into 1480 3 times with a remainder of 292.
Put 3 as the next digit of the answer. 
Result so far: 143151.3737373
Deduct 1188 from 1480 and we're left with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Going ahead to step 16:
396 can be fit into 2920 7 times, resulting in a remainder of 148.
Write down 7 as next digit of the result. 
Result so far: 143151.37373737
If we take 2772 away from 2920, we end up with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

The final result is 143151.37373737 with a remainder of 1.48e-07.