We divide 19807923 by 401
The aim is to understand the frequency of 401 in 19807923.

Step 1:
401 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 401

On to step 2:
If we divide 19 by 401, we get 0 and a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Bring next digit (8) of the dividend behind the 19 and repeat the process: 198 / 401

Going ahead to step 3:
401 can be fit into 198 0 times, resulting in a remainder of 198.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 198, we end up with 198.
Include the next digit (0) from the dividend after 198, then repeat: 1980 / 401

Going ahead to step 4:
The number 401 fits into 1980 4 times, leaving a remainder of 376.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 1604 from 1980, we get 376.
Grab the next digit (7) from the dividend, add it to 376, then carry on: 3767 / 401

Step 5:
3767 divided by 401 is 9 with a remainder of 158.
The next digit of our result is 9. 
Result so far: 49.0
If we take 3609 away from 3767, we end up with 158.
Grab the next digit (9) from the dividend, add it to 158, then carry on: 1589 / 401

Advancing to step 6:
1589 divided by 401 is 3 with a remainder of 386.
Record the quotient 3 as the next digit in the result. 
Result so far: 493.0
Subtract 1203 from 1589 to get 386.
Fetch the next digit (2) from the dividend, attach it to 386 and continue: 3862 / 401

Going ahead to step 7:
401 goes into 3862 9 times with a remainder of 253.
Put 9 as the next digit of the answer. 
Result so far: 4939.0
If we subtract 3609 from 3862, we get 253.
Include the next digit (3) from the dividend after 253, then repeat: 2533 / 401

On to step 8:
The number 401 fits into 2533 6 times, leaving a remainder of 127.
Write down 6 as next digit of the result. 
Result so far: 49396.0
If we take 2406 away from 2533, we end up with 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 9:
When dividing 1270 by 401, we get 3 with a remainder of 67.
The number 3 becomes the next digit in our result. 
Result so far: 49396.3
Deduct 1203 from 1270 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 10:
If we divide 670 by 401, we get 1 and a remainder of 269.
The number 1 becomes the next digit in our result. 
Result so far: 49396.31
If we subtract 401 from 670, we get 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Advancing to step 11:
401 can be fit into 2690 6 times, resulting in a remainder of 284.
Record the quotient 6 as the next digit in the result. 
Result so far: 49396.316
The remainder is 284 after subtracting 2406 from 2690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Step 12:
2840 divided by 401 is 7 with a remainder of 33.
Put 7 as the next digit of the answer. 
Result so far: 49396.3167
If we take 2807 away from 2840, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 13:
If we divide 330 by 401, we get 0 and a remainder of 330.
Record the quotient 0 as the next digit in the result. 
Result so far: 49396.3167
Subtract 0 from 330 to get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Advancing to step 14:
The number 401 fits into 3300 8 times, leaving a remainder of 92.
The next digit of our result is 8. 
Result so far: 49396.316708
Subtracting 3208 from 3300 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Moving on to step 15:
401 can be fit into 920 2 times, resulting in a remainder of 118.
Use 2 as the next digit of our solution. 
Result so far: 49396.3167082
If we subtract 802 from 920, we get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Going ahead to step 16:
401 can be fit into 1180 2 times, resulting in a remainder of 378.
The next digit of our result is 2. 
Result so far: 49396.31670822
The remainder is 378 after subtracting 802 from 1180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

The quotient of the division is 49396.31670822, and the remainder is 3.78e-07.