We look at the division of 60643707 by 350 
The aim is to understand the frequency of 350 in 60643707.

Advancing to step 1:
350 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 350

Step 2:
60 divided by 350 is 0 with a remainder of 60.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 60 and we're left with 60.
Grab the next digit (6) from the dividend, add it to 60, then carry on: 606 / 350

Moving on to step 3:
350 goes into 606 1 times with a remainder of 256.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 350 from 606, we get 256.
Append the next digit (4) from the dividend to 256 and continue with: 2564 / 350

Going ahead to step 4:
350 can be fit into 2564 7 times, resulting in a remainder of 114.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Deduct 2450 from 2564 and we're left with 114.
Bring next digit (3) of the dividend behind the 114 and repeat the process: 1143 / 350

Moving on to step 5:
350 can be fit into 1143 3 times, resulting in a remainder of 93.
Put 3 as the next digit of the answer. 
Result so far: 173.0
If we take 1050 away from 1143, we end up with 93.
Bring next digit (7) of the dividend behind the 93 and repeat the process: 937 / 350

Advancing to step 6:
If we divide 937 by 350, we get 2 and a remainder of 237.
Write down 2 as next digit of the result. 
Result so far: 1732.0
Subtract 700 from 937 to get 237.
Fetch the next digit (0) from the dividend, attach it to 237 and continue: 2370 / 350

Going ahead to step 7:
The number 350 fits into 2370 6 times, leaving a remainder of 270.
Put 6 as the next digit of the answer. 
Result so far: 17326.0
Subtract 2100 from 2370 to get 270.
Take the next digit (7) from the dividend and append it to 270, then repeat: 2707 / 350

On to step 8:
350 can be fit into 2707 7 times, resulting in a remainder of 257.
The next digit of our result is 7. 
Result so far: 173267.0
Deduct 2450 from 2707 and we're left with 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Let's proceed to step 9:
350 goes into 2570 7 times with a remainder of 120.
Record the quotient 7 as the next digit in the result. 
Result so far: 173267.7
Deduct 2450 from 2570 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.

On to step 10:
When dividing 1200 by 350, we get 3 with a remainder of 150.
The next digit of our result is 3. 
Result so far: 173267.73
Deduct 1050 from 1200 and we're left 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.

Going ahead to step 11:
The number 350 fits into 1500 4 times, leaving a remainder of 100.
Use 4 as the next digit of our solution. 
Result so far: 173267.734
If we take 1400 away from 1500, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 12:
The number 350 fits into 1000 2 times, leaving a remainder of 300.
The number 2 becomes the next digit in our result. 
Result so far: 173267.7342
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.

Step 13:
When dividing 3000 by 350, we get 8 with a remainder of 200.
Put 8 as the next digit of the answer. 
Result so far: 173267.73428
Subtracting 2800 from 3000 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 14:
350 goes into 2000 5 times with a remainder of 250.
The next digit of our result is 5. 
Result so far: 173267.734285
Deduct 1750 from 2000 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 15:
The number 350 fits into 2500 7 times, leaving a remainder of 50.
Record the quotient 7 as the next digit in the result. 
Result so far: 173267.7342857
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.

Step 16:
When dividing 500 by 350, we get 1 with a remainder of 150.
Write down 1 as next digit of the result. 
Result so far: 173267.73428571
Deduct 350 from 500 and we're left 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.

The final outcome is 173267.73428571, with a leftover of 1.5e-07.