We look at the division of 17988986 by 56 
The aim is to understand the frequency of 56 in 17988986.

Step 1:
56 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 56

Advancing to step 2:
If we divide 17 by 56, we get 0 and a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 17, we end up with 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 56

Going ahead to step 3:
If we divide 179 by 56, we get 3 and a remainder of 11.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 168 from 179 and we're left with 11.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 56

Advancing to step 4:
56 goes into 118 2 times with a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 32.0
Subtract 112 from 118 to get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 56

Going ahead to step 5:
56 can be fit into 68 1 times, resulting in a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 321.0
If we subtract 56 from 68, we get 12.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 56

Step 6:
56 goes into 129 2 times with a remainder of 17.
Write down 2 as next digit of the result. 
Result so far: 3212.0
Subtracting 112 from 129 leaves us with 17.
Include the next digit (8) from the dividend after 17, then repeat: 178 / 56

Advancing to step 7:
The number 56 fits into 178 3 times, leaving a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 32123.0
If we take 168 away from 178, we end up with 10.
Fetch the next digit (6) from the dividend, attach it to 10 and continue: 106 / 56

Advancing to step 8:
106 divided by 56 is 1 with a remainder of 50.
The next digit of our result is 1. 
Result so far: 321231.0
Deduct 56 from 106 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 9:
56 can be fit into 500 8 times, resulting in a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 321231.8
Subtract 448 from 500 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 10:
56 can be fit into 520 9 times, resulting in a remainder of 16.
Use 9 as the next digit of our solution. 
Result so far: 321231.89
Deduct 504 from 520 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 11:
56 can be fit into 160 2 times, resulting in a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 321231.892
Subtract 112 from 160 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 12:
56 goes into 480 8 times with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 321231.8928
The remainder is 32 after subtracting 448 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 13:
320 divided by 56 is 5 with a remainder of 40.
The next digit of our result is 5. 
Result so far: 321231.89285
Subtracting 280 from 320 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 14:
When dividing 400 by 56, we get 7 with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 321231.892857
Subtracting 392 from 400 leaves us 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.

On to step 15:
56 can be fit into 80 1 times, resulting in a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 321231.8928571
If we take 56 away from 80, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 16:
56 can be fit into 240 4 times, resulting in a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 321231.89285714
Deduct 224 from 240 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 321231.89285714 with a remainder of 1.6e-08.