62693540 divided by 399 
The aim is to understand the frequency of 399 in 62693540.

On to step 1:
The number 399 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 399

Step 2:
If we divide 62 by 399, we get 0 and a remainder of 62.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 62, we get 62.
Take the next digit (6) from the dividend and append it to 62, then repeat: 626 / 399

On to step 3:
The number 399 fits into 626 1 times, leaving a remainder of 227.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 399 from 626 to get 227.
Grab the next digit (9) from the dividend, add it to 227, then carry on: 2279 / 399

Going ahead to step 4:
The number 399 fits into 2279 5 times, leaving a remainder of 284.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we subtract 1995 from 2279, we get 284.
Fetch the next digit (3) from the dividend, attach it to 284 and continue: 2843 / 399

Moving on to step 5:
If we divide 2843 by 399, we get 7 and a remainder of 50.
Record the quotient 7 as the next digit in the result. 
Result so far: 157.0
If we subtract 2793 from 2843, we get 50.
Append the next digit (5) from the dividend to 50 and continue with: 505 / 399

On to step 6:
If we divide 505 by 399, we get 1 and a remainder of 106.
Write down 1 as next digit of the result. 
Result so far: 1571.0
If we subtract 399 from 505, we get 106.
Fetch the next digit (4) from the dividend, attach it to 106 and continue: 1064 / 399

Going ahead to step 7:
399 can be fit into 1064 2 times, resulting in a remainder of 266.
Put 2 as the next digit of the answer. 
Result so far: 15712.0
If we take 798 away from 1064, we end up with 266.
Include the next digit (0) from the dividend after 266, then repeat: 2660 / 399

Step 8:
When dividing 2660 by 399, we get 6 with a remainder of 266.
The next digit of our result is 6. 
Result so far: 157126.0
If we subtract 2394 from 2660, we get 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Moving on to step 9:
If we divide 2660 by 399, we get 6 and a remainder of 266.
Put 6 as the next digit of the answer. 
Result so far: 157126.6
The remainder is 266 after subtracting 2394 from 2660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Advancing to step 10:
When dividing 2660 by 399, we get 6 with a remainder of 266.
Put 6 as the next digit of the answer. 
Result so far: 157126.66
Subtract 2394 from 2660 to get 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

The quotient of the division is 157126.66, and the remainder is 0.266.