We divide 75145126 by 407
The aim is to understand the frequency of 407 in 75145126.

Advancing to step 1:
407 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 407

Step 2:
The number 407 fits into 75 0 times, leaving a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Fetch the next digit (1) from the dividend, attach it to 75 and continue: 751 / 407

Step 3:
751 divided by 407 is 1 with a remainder of 344.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 407 from 751 to get 344.
Grab the next digit (4) from the dividend, add it to 344, then carry on: 3444 / 407

Going ahead to step 4:
407 can be fit into 3444 8 times, resulting in a remainder of 188.
Put 8 as the next digit of the answer. 
Result so far: 18.0
If we take 3256 away from 3444, we end up with 188.
Grab the next digit (5) from the dividend, add it to 188, then carry on: 1885 / 407

Moving on to step 5:
When dividing 1885 by 407, we get 4 with a remainder of 257.
The next digit of our result is 4. 
Result so far: 184.0
Subtract 1628 from 1885 to get 257.
Fetch the next digit (1) from the dividend, attach it to 257 and continue: 2571 / 407

Let's proceed to step 6:
If we divide 2571 by 407, we get 6 and a remainder of 129.
Record the quotient 6 as the next digit in the result. 
Result so far: 1846.0
If we take 2442 away from 2571, we end up with 129.
Append the next digit (2) from the dividend to 129 and continue with: 1292 / 407

Advancing to step 7:
If we divide 1292 by 407, we get 3 and a remainder of 71.
Put 3 as the next digit of the answer. 
Result so far: 18463.0
Subtracting 1221 from 1292 leaves us with 71.
Bring next digit (6) of the dividend behind the 71 and repeat the process: 716 / 407

Moving on to step 8:
When dividing 716 by 407, we get 1 with a remainder of 309.
Use 1 as the next digit of our solution. 
Result so far: 184631.0
Deduct 407 from 716 and we're left with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Advancing to step 9:
3090 divided by 407 is 7 with a remainder of 241.
The number 7 becomes the next digit in our result. 
Result so far: 184631.7
Subtracting 2849 from 3090 leaves us with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Step 10:
407 goes into 2410 5 times with a remainder of 375.
Write down 5 as next digit of the result. 
Result so far: 184631.75
Subtract 2035 from 2410 to get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Going ahead to step 11:
407 can be fit into 3750 9 times, resulting in a remainder of 87.
Use 9 as the next digit of our solution. 
Result so far: 184631.759
If we take 3663 away from 3750, we end up with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

On to step 12:
When dividing 870 by 407, we get 2 with a remainder of 56.
Record the quotient 2 as the next digit in the result. 
Result so far: 184631.7592
Deduct 814 from 870 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 13:
407 can be fit into 560 1 times, resulting in a remainder of 153.
The next digit of our result is 1. 
Result so far: 184631.75921
If we take 407 away from 560, we end up with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Going ahead to step 14:
1530 divided by 407 is 3 with a remainder of 309.
The number 3 becomes the next digit in our result. 
Result so far: 184631.759213
Deduct 1221 from 1530 and we're left with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Step 15:
407 goes into 3090 7 times with a remainder of 241.
The next digit of our result is 7. 
Result so far: 184631.7592137
Deduct 2849 from 3090 and we're left with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

On to step 16:
2410 divided by 407 is 5 with a remainder of 375.
Put 5 as the next digit of the answer. 
Result so far: 184631.75921375
The remainder is 375 after subtracting 2035 from 2410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

The quotient of the division is 184631.75921375, and the remainder is 3.75e-07.