We look at the division of 50090612 by 350 
The aim is to understand the frequency of 350 in 50090612.

Advancing to step 1:
5 divided by 350 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 350

Going ahead to step 2:
If we divide 50 by 350, we get 0 and a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Take the next digit (0) from the dividend and append it to 50, then repeat: 500 / 350

Advancing to step 3:
350 goes into 500 1 times with a remainder of 150.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 350 from 500 to get 150.
Include the next digit (9) from the dividend after 150, then repeat: 1509 / 350

Let's proceed to step 4:
1509 divided by 350 is 4 with a remainder of 109.
The next digit of our result is 4. 
Result so far: 14.0
Deduct 1400 from 1509 and we're left with 109.
Grab the next digit (0) from the dividend, add it to 109, then carry on: 1090 / 350

Going ahead to step 5:
If we divide 1090 by 350, we get 3 and a remainder of 40.
Write down 3 as next digit of the result. 
Result so far: 143.0
The remainder is 40 after subtracting 1050 from 1090.
Take the next digit (6) from the dividend and append it to 40, then repeat: 406 / 350

Step 6:
The number 350 fits into 406 1 times, leaving a remainder of 56.
The next digit of our result is 1. 
Result so far: 1431.0
The remainder is 56 after subtracting 350 from 406.
Fetch the next digit (1) from the dividend, attach it to 56 and continue: 561 / 350

Going ahead to step 7:
The number 350 fits into 561 1 times, leaving a remainder of 211.
Use 1 as the next digit of our solution. 
Result so far: 14311.0
The remainder is 211 after subtracting 350 from 561.
Append the next digit (2) from the dividend to 211 and continue with: 2112 / 350

Let's proceed to step 8:
350 goes into 2112 6 times with a remainder of 12.
The next digit of our result is 6. 
Result so far: 143116.0
Subtracting 2100 from 2112 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
120 divided by 350 is 0 with a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 143116.0
Deduct 0 from 120 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 10:
350 can be fit into 1200 3 times, resulting in a remainder of 150.
The number 3 becomes the next digit in our result. 
Result so far: 143116.03
If we take 1050 away from 1200, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 11:
1500 divided by 350 is 4 with a remainder of 100.
The number 4 becomes the next digit in our result. 
Result so far: 143116.034
The remainder is 100 after subtracting 1400 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 12:
350 can be fit into 1000 2 times, resulting in a remainder of 300.
Use 2 as the next digit of our solution. 
Result so far: 143116.0342
If we take 700 away from 1000, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 13:
350 can be fit into 3000 8 times, resulting in a remainder of 200.
Write down 8 as next digit of the result. 
Result so far: 143116.03428
If we subtract 2800 from 3000, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 14:
If we divide 2000 by 350, we get 5 and a remainder of 250.
Record the quotient 5 as the next digit in the result. 
Result so far: 143116.034285
Subtract 1750 from 2000 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.

Moving on to step 15:
The number 350 fits into 2500 7 times, leaving a remainder of 50.
Use 7 as the next digit of our solution. 
Result so far: 143116.0342857
If we subtract 2450 from 2500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 16:
350 goes into 500 1 times with a remainder of 150.
The number 1 becomes the next digit in our result. 
Result so far: 143116.03428571
Subtracting 350 from 500 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

After the division, we end up with 143116.03428571 and a remainder of 1.5e-07.