Let's divide 84007621 by 812
We want to divide 84007621 by 812.

Advancing to step 1:
If we divide 8 by 812, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 812

Moving on to step 2:
The number 812 fits into 84 0 times, leaving a remainder of 84.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 84 and we're left with 84.
Bring next digit (0) of the dividend behind the 84 and repeat the process: 840 / 812

Going ahead to step 3:
The number 812 fits into 840 1 times, leaving a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 812 from 840, we get 28.
Append the next digit (0) from the dividend to 28 and continue with: 280 / 812

On to step 4:
The number 812 fits into 280 0 times, leaving a remainder of 280.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 280, we end up with 280.
Take the next digit (7) from the dividend and append it to 280, then repeat: 2807 / 812

Going ahead to step 5:
The number 812 fits into 2807 3 times, leaving a remainder of 371.
Record the quotient 3 as the next digit in the result. 
Result so far: 103.0
If we take 2436 away from 2807, we end up with 371.
Take the next digit (6) from the dividend and append it to 371, then repeat: 3716 / 812

On to step 6:
If we divide 3716 by 812, we get 4 and a remainder of 468.
Write down 4 as next digit of the result. 
Result so far: 1034.0
If we subtract 3248 from 3716, we get 468.
Fetch the next digit (2) from the dividend, attach it to 468 and continue: 4682 / 812

Step 7:
4682 divided by 812 is 5 with a remainder of 622.
The number 5 becomes the next digit in our result. 
Result so far: 10345.0
The remainder is 622 after subtracting 4060 from 4682.
Fetch the next digit (1) from the dividend, attach it to 622 and continue: 6221 / 812

Moving on to step 8:
If we divide 6221 by 812, we get 7 and a remainder of 537.
The number 7 becomes the next digit in our result. 
Result so far: 103457.0
The remainder is 537 after subtracting 5684 from 6221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5370, and continue the process.

Advancing to step 9:
When dividing 5370 by 812, we get 6 with a remainder of 498.
The number 6 becomes the next digit in our result. 
Result so far: 103457.6
Deduct 4872 from 5370 and we're left with 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

Advancing to step 10:
4980 divided by 812 is 6 with a remainder of 108.
The number 6 becomes the next digit in our result. 
Result so far: 103457.66
Subtract 4872 from 4980 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Our division results in 103457.66 with a remaining 0.108.