17851759 divided by 355 
The aim is to understand the frequency of 355 in 17851759.

On to step 1:
1 divided by 355 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 355

Moving on to step 2:
355 goes into 17 0 times with a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Append the next digit (8) from the dividend to 17 and continue with: 178 / 355

Moving on to step 3:
355 can be fit into 178 0 times, resulting in a remainder of 178.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 178 and we're left with 178.
Include the next digit (5) from the dividend after 178, then repeat: 1785 / 355

Going ahead to step 4:
If we divide 1785 by 355, we get 5 and a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 1775 from 1785 to get 10.
Grab the next digit (1) from the dividend, add it to 10, then carry on: 101 / 355

Advancing to step 5:
355 goes into 101 0 times with a remainder of 101.
Write down 0 as next digit of the result. 
Result so far: 50.0
Deduct 0 from 101 and we're left with 101.
Take the next digit (7) from the dividend and append it to 101, then repeat: 1017 / 355

On to step 6:
The number 355 fits into 1017 2 times, leaving a remainder of 307.
The number 2 becomes the next digit in our result. 
Result so far: 502.0
Subtract 710 from 1017 to get 307.
Bring next digit (5) of the dividend behind the 307 and repeat the process: 3075 / 355

Going ahead to step 7:
355 goes into 3075 8 times with a remainder of 235.
Record the quotient 8 as the next digit in the result. 
Result so far: 5028.0
If we take 2840 away from 3075, we end up with 235.
Grab the next digit (9) from the dividend, add it to 235, then carry on: 2359 / 355

Going ahead to step 8:
2359 divided by 355 is 6 with a remainder of 229.
The number 6 becomes the next digit in our result. 
Result so far: 50286.0
The remainder is 229 after subtracting 2130 from 2359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Advancing to step 9:
355 can be fit into 2290 6 times, resulting in a remainder of 160.
Write down 6 as next digit of the result. 
Result so far: 50286.6
Subtracting 2130 from 2290 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 10:
355 goes into 1600 4 times with a remainder of 180.
Put 4 as the next digit of the answer. 
Result so far: 50286.64
If we subtract 1420 from 1600, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 11:
355 goes into 1800 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 50286.645
Subtracting 1775 from 1800 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 12:
The number 355 fits into 250 0 times, leaving a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 50286.645
Subtract 0 from 250 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Let's proceed to step 13:
355 goes into 2500 7 times with a remainder of 15.
Put 7 as the next digit of the answer. 
Result so far: 50286.64507
The remainder is 15 after subtracting 2485 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 14:
355 goes into 150 0 times with a remainder of 150.
Use 0 as the next digit of our solution. 
Result so far: 50286.64507
If we subtract 0 from 150, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 15:
355 can be fit into 1500 4 times, resulting in a remainder of 80.
Put 4 as the next digit of the answer. 
Result so far: 50286.6450704
If we subtract 1420 from 1500, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 16:
When dividing 800 by 355, we get 2 with a remainder of 90.
Use 2 as the next digit of our solution. 
Result so far: 50286.64507042
If we subtract 710 from 800, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

The final outcome is 50286.64507042, with a leftover of 9e-08.