84210829 ÷ 612 
Our goal is to divide 84210829 by 612.

On to step 1:
612 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 612

On to step 2:
If we divide 84 by 612, we get 0 and a remainder of 84.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 84 to get 84.
Fetch the next digit (2) from the dividend, attach it to 84 and continue: 842 / 612

Going ahead to step 3:
If we divide 842 by 612, we get 1 and a remainder of 230.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 612 from 842, we get 230.
Append the next digit (1) from the dividend to 230 and continue with: 2301 / 612

On to step 4:
When dividing 2301 by 612, we get 3 with a remainder of 465.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 1836 away from 2301, we end up with 465.
Append the next digit (0) from the dividend to 465 and continue with: 4650 / 612

Going ahead to step 5:
The number 612 fits into 4650 7 times, leaving a remainder of 366.
Record the quotient 7 as the next digit in the result. 
Result so far: 137.0
If we subtract 4284 from 4650, we get 366.
Include the next digit (8) from the dividend after 366, then repeat: 3668 / 612

Advancing to step 6:
612 goes into 3668 5 times with a remainder of 608.
The number 5 becomes the next digit in our result. 
Result so far: 1375.0
Subtracting 3060 from 3668 leaves us with 608.
Grab the next digit (2) from the dividend, add it to 608, then carry on: 6082 / 612

Moving on to step 7:
612 goes into 6082 9 times with a remainder of 574.
Write down 9 as next digit of the result. 
Result so far: 13759.0
If we take 5508 away from 6082, we end up with 574.
Append the next digit (9) from the dividend to 574 and continue with: 5749 / 612

On to step 8:
612 goes into 5749 9 times with a remainder of 241.
Use 9 as the next digit of our solution. 
Result so far: 137599.0
Deduct 5508 from 5749 and we're left with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

On to step 9:
If we divide 2410 by 612, we get 3 and a remainder of 574.
Write down 3 as next digit of the result. 
Result so far: 137599.3
Subtract 1836 from 2410 to get 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

On to step 10:
The number 612 fits into 5740 9 times, leaving a remainder of 232.
Use 9 as the next digit of our solution. 
Result so far: 137599.39
The remainder is 232 after subtracting 5508 from 5740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Step 11:
612 can be fit into 2320 3 times, resulting in a remainder of 484.
Put 3 as the next digit of the answer. 
Result so far: 137599.393
Subtracting 1836 from 2320 leaves us with 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

On to step 12:
The number 612 fits into 4840 7 times, leaving a remainder of 556.
The number 7 becomes the next digit in our result. 
Result so far: 137599.3937
Subtract 4284 from 4840 to get 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Let's proceed to step 13:
The number 612 fits into 5560 9 times, leaving a remainder of 52.
The next digit of our result is 9. 
Result so far: 137599.39379
Subtracting 5508 from 5560 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 14:
The number 612 fits into 520 0 times, leaving a remainder of 520.
The next digit of our result is 0. 
Result so far: 137599.39379
If we take 0 away from 520, we end up with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 15:
If we divide 5200 by 612, we get 8 and a remainder of 304.
Use 8 as the next digit of our solution. 
Result so far: 137599.3937908
If we subtract 4896 from 5200, we get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 16:
3040 divided by 612 is 4 with a remainder of 592.
Record the quotient 4 as the next digit in the result. 
Result so far: 137599.39379084
Subtract 2448 from 3040 to get 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

The final result is 137599.39379084 with a remainder of 5.92e-07.