We look at the division of 84975261 by 399 
We want to figure out the number of times 84975261 can be divided by 399.

Let's proceed to step 1:
The number 399 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 399

Advancing to step 2:
399 goes into 84 0 times with a remainder of 84.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 84 and we're left with 84.
Bring next digit (9) of the dividend behind the 84 and repeat the process: 849 / 399

Moving on to step 3:
849 divided by 399 is 2 with a remainder of 51.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 798 from 849 and we're left with 51.
Bring next digit (7) of the dividend behind the 51 and repeat the process: 517 / 399

On to step 4:
The number 399 fits into 517 1 times, leaving a remainder of 118.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we take 399 away from 517, we end up with 118.
Include the next digit (5) from the dividend after 118, then repeat: 1185 / 399

Advancing to step 5:
399 goes into 1185 2 times with a remainder of 387.
Write down 2 as next digit of the result. 
Result so far: 212.0
Deduct 798 from 1185 and we're left with 387.
Include the next digit (2) from the dividend after 387, then repeat: 3872 / 399

Advancing to step 6:
When dividing 3872 by 399, we get 9 with a remainder of 281.
Put 9 as the next digit of the answer. 
Result so far: 2129.0
If we take 3591 away from 3872, we end up with 281.
Include the next digit (6) from the dividend after 281, then repeat: 2816 / 399

Advancing to step 7:
If we divide 2816 by 399, we get 7 and a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 21297.0
If we subtract 2793 from 2816, we get 23.
Grab the next digit (1) from the dividend, add it to 23, then carry on: 231 / 399

Advancing to step 8:
399 can be fit into 231 0 times, resulting in a remainder of 231.
The number 0 becomes the next digit in our result. 
Result so far: 212970.0
If we subtract 0 from 231, we get 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Advancing to step 9:
The number 399 fits into 2310 5 times, leaving a remainder of 315.
Record the quotient 5 as the next digit in the result. 
Result so far: 212970.5
Subtract 1995 from 2310 to get 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Let's proceed to step 10:
The number 399 fits into 3150 7 times, leaving a remainder of 357.
Use 7 as the next digit of our solution. 
Result so far: 212970.57
Subtract 2793 from 3150 to get 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Moving on to step 11:
If we divide 3570 by 399, we get 8 and a remainder of 378.
Put 8 as the next digit of the answer. 
Result so far: 212970.578
The remainder is 378 after subtracting 3192 from 3570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Going ahead to step 12:
When dividing 3780 by 399, we get 9 with a remainder of 189.
Put 9 as the next digit of the answer. 
Result so far: 212970.5789
Subtract 3591 from 3780 to get 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

Going ahead to step 13:
1890 divided by 399 is 4 with a remainder of 294.
Record the quotient 4 as the next digit in the result. 
Result so far: 212970.57894
If we take 1596 away from 1890, we end up with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Moving on to step 14:
2940 divided by 399 is 7 with a remainder of 147.
The next digit of our result is 7. 
Result so far: 212970.578947
If we take 2793 away from 2940, we end up with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Moving on to step 15:
If we divide 1470 by 399, we get 3 and a remainder of 273.
Record the quotient 3 as the next digit in the result. 
Result so far: 212970.5789473
The remainder is 273 after subtracting 1197 from 1470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

Going ahead to step 16:
2730 divided by 399 is 6 with a remainder of 336.
Record the quotient 6 as the next digit in the result. 
Result so far: 212970.57894736
Deduct 2394 from 2730 and we're left with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

The final result is 212970.57894736 with a remainder of 3.36e-07.