84211857 ÷ 658 
Let's see how many times 658 fits into 84211857.

Advancing to step 1:
When dividing 8 by 658, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 658

Step 2:
When dividing 84 by 658, we get 0 with a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 84 leaves us with 84.
Bring next digit (2) of the dividend behind the 84 and repeat the process: 842 / 658

Going ahead to step 3:
658 can be fit into 842 1 times, resulting in a remainder of 184.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 658 from 842 to get 184.
Grab the next digit (1) from the dividend, add it to 184, then carry on: 1841 / 658

Going ahead to step 4:
If we divide 1841 by 658, we get 2 and a remainder of 525.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 1316 from 1841 to get 525.
Take the next digit (1) from the dividend and append it to 525, then repeat: 5251 / 658

Let's proceed to step 5:
5251 divided by 658 is 7 with a remainder of 645.
Use 7 as the next digit of our solution. 
Result so far: 127.0
If we subtract 4606 from 5251, we get 645.
Include the next digit (8) from the dividend after 645, then repeat: 6458 / 658

Going ahead to step 6:
The number 658 fits into 6458 9 times, leaving a remainder of 536.
Record the quotient 9 as the next digit in the result. 
Result so far: 1279.0
If we subtract 5922 from 6458, we get 536.
Grab the next digit (5) from the dividend, add it to 536, then carry on: 5365 / 658

On to step 7:
5365 divided by 658 is 8 with a remainder of 101.
Use 8 as the next digit of our solution. 
Result so far: 12798.0
Subtract 5264 from 5365 to get 101.
Fetch the next digit (7) from the dividend, attach it to 101 and continue: 1017 / 658

Advancing to step 8:
658 goes into 1017 1 times with a remainder of 359.
Record the quotient 1 as the next digit in the result. 
Result so far: 127981.0
Subtract 658 from 1017 to get 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Moving on to step 9:
3590 divided by 658 is 5 with a remainder of 300.
Write down 5 as next digit of the result. 
Result so far: 127981.5
Deduct 3290 from 3590 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 10:
When dividing 3000 by 658, we get 4 with a remainder of 368.
Record the quotient 4 as the next digit in the result. 
Result so far: 127981.54
If we subtract 2632 from 3000, we get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Step 11:
The number 658 fits into 3680 5 times, leaving a remainder of 390.
Put 5 as the next digit of the answer. 
Result so far: 127981.545
Deduct 3290 from 3680 and we're left with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Advancing to step 12:
658 can be fit into 3900 5 times, resulting in a remainder of 610.
The next digit of our result is 5. 
Result so far: 127981.5455
Deduct 3290 from 3900 and we're left with 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

The final outcome is 127981.5455, with a leftover of 0.0061.