We look at the division of 60249824 by 407 
The aim is to understand the frequency of 407 in 60249824.

Advancing to step 1:
If we divide 6 by 407, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 407

Going ahead to step 2:
If we divide 60 by 407, we get 0 and a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 60, we get 60.
Fetch the next digit (2) from the dividend, attach it to 60 and continue: 602 / 407

Let's proceed to step 3:
When dividing 602 by 407, we get 1 with a remainder of 195.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 407 from 602, we get 195.
Take the next digit (4) from the dividend and append it to 195, then repeat: 1954 / 407

Going ahead to step 4:
When dividing 1954 by 407, we get 4 with a remainder of 326.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Deduct 1628 from 1954 and we're left with 326.
Bring next digit (9) of the dividend behind the 326 and repeat the process: 3269 / 407

Step 5:
If we divide 3269 by 407, we get 8 and a remainder of 13.
Write down 8 as next digit of the result. 
Result so far: 148.0
The remainder is 13 after subtracting 3256 from 3269.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 407

Step 6:
407 can be fit into 138 0 times, resulting in a remainder of 138.
The number 0 becomes the next digit in our result. 
Result so far: 1480.0
Subtract 0 from 138 to get 138.
Grab the next digit (2) from the dividend, add it to 138, then carry on: 1382 / 407

Moving on to step 7:
If we divide 1382 by 407, we get 3 and a remainder of 161.
Use 3 as the next digit of our solution. 
Result so far: 14803.0
Deduct 1221 from 1382 and we're left with 161.
Fetch the next digit (4) from the dividend, attach it to 161 and continue: 1614 / 407

Moving on to step 8:
1614 divided by 407 is 3 with a remainder of 393.
Write down 3 as next digit of the result. 
Result so far: 148033.0
Deduct 1221 from 1614 and we're left with 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

On to step 9:
407 can be fit into 3930 9 times, resulting in a remainder of 267.
Write down 9 as next digit of the result. 
Result so far: 148033.9
If we subtract 3663 from 3930, we get 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Let's proceed to step 10:
407 goes into 2670 6 times with a remainder of 228.
Write down 6 as next digit of the result. 
Result so far: 148033.96
Deduct 2442 from 2670 and we're left with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

On to step 11:
If we divide 2280 by 407, we get 5 and a remainder of 245.
The next digit of our result is 5. 
Result so far: 148033.965
If we take 2035 away from 2280, we end up with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Step 12:
407 can be fit into 2450 6 times, resulting in a remainder of 8.
The next digit of our result is 6. 
Result so far: 148033.9656
The remainder is 8 after subtracting 2442 from 2450.
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 13:
If we divide 80 by 407, we get 0 and a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 148033.9656
Subtract 0 from 80 to 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.

On to step 14:
407 goes into 800 1 times with a remainder of 393.
Record the quotient 1 as the next digit in the result. 
Result so far: 148033.965601
If we take 407 away from 800, we end up with 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

Step 15:
407 goes into 3930 9 times with a remainder of 267.
Write down 9 as next digit of the result. 
Result so far: 148033.9656019
If we take 3663 away from 3930, we end up with 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Step 16:
If we divide 2670 by 407, we get 6 and a remainder of 228.
Put 6 as the next digit of the answer. 
Result so far: 148033.96560196
Subtract 2442 from 2670 to get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Our division results in 148033.96560196 with a remaining 2.28e-07.