84289258 ÷ 401 
Our goal is to divide 84289258 by 401.

Moving on to step 1:
8 divided by 401 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 401

Moving on to step 2:
401 goes into 84 0 times with a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 84 after subtracting 0 from 84.
Bring next digit (2) of the dividend behind the 84 and repeat the process: 842 / 401

Going ahead to step 3:
When dividing 842 by 401, we get 2 with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 802 from 842 to get 40.
Include the next digit (8) from the dividend after 40, then repeat: 408 / 401

Step 4:
When dividing 408 by 401, we get 1 with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
Subtract 401 from 408 to get 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 401

Moving on to step 5:
79 divided by 401 is 0 with a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 210.0
Deduct 0 from 79 and we're left with 79.
Include the next digit (2) from the dividend after 79, then repeat: 792 / 401

Going ahead to step 6:
401 goes into 792 1 times with a remainder of 391.
Record the quotient 1 as the next digit in the result. 
Result so far: 2101.0
Subtract 401 from 792 to get 391.
Grab the next digit (5) from the dividend, add it to 391, then carry on: 3915 / 401

Advancing to step 7:
The number 401 fits into 3915 9 times, leaving a remainder of 306.
Write down 9 as next digit of the result. 
Result so far: 21019.0
Subtracting 3609 from 3915 leaves us with 306.
Take the next digit (8) from the dividend and append it to 306, then repeat: 3068 / 401

Moving on to step 8:
When dividing 3068 by 401, we get 7 with a remainder of 261.
Record the quotient 7 as the next digit in the result. 
Result so far: 210197.0
If we subtract 2807 from 3068, we get 261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

Advancing to step 9:
401 can be fit into 2610 6 times, resulting in a remainder of 204.
Use 6 as the next digit of our solution. 
Result so far: 210197.6
Subtract 2406 from 2610 to get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Step 10:
2040 divided by 401 is 5 with a remainder of 35.
The next digit of our result is 5. 
Result so far: 210197.65
If we take 2005 away from 2040, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 11:
If we divide 350 by 401, we get 0 and a remainder of 350.
The next digit of our result is 0. 
Result so far: 210197.65
Subtracting 0 from 350 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Step 12:
3500 divided by 401 is 8 with a remainder of 292.
Record the quotient 8 as the next digit in the result. 
Result so far: 210197.6508
Subtract 3208 from 3500 to get 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Step 13:
The number 401 fits into 2920 7 times, leaving a remainder of 113.
Write down 7 as next digit of the result. 
Result so far: 210197.65087
Subtracting 2807 from 2920 leaves us with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Advancing to step 14:
When dividing 1130 by 401, we get 2 with a remainder of 328.
Write down 2 as next digit of the result. 
Result so far: 210197.650872
Subtract 802 from 1130 to get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

On to step 15:
401 goes into 3280 8 times with a remainder of 72.
Write down 8 as next digit of the result. 
Result so far: 210197.6508728
The remainder is 72 after subtracting 3208 from 3280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 16:
401 can be fit into 720 1 times, resulting in a remainder of 319.
The next digit of our result is 1. 
Result so far: 210197.65087281
Subtract 401 from 720 to get 319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

The final result is 210197.65087281 with a remainder of 3.19e-07.