We look at the division of 87220451 by 812 
Our goal is to divide 87220451 by 812.

Step 1:
8 divided by 812 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 812

Step 2:
87 divided by 812 is 0 with a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Grab the next digit (2) from the dividend, add it to 87, then carry on: 872 / 812

On to step 3:
The number 812 fits into 872 1 times, leaving a remainder of 60.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 812 from 872 leaves us with 60.
Take the next digit (2) from the dividend and append it to 60, then repeat: 602 / 812

Moving on to step 4:
602 divided by 812 is 0 with a remainder of 602.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 602 to get 602.
Bring next digit (0) of the dividend behind the 602 and repeat the process: 6020 / 812

Step 5:
When dividing 6020 by 812, we get 7 with a remainder of 336.
Use 7 as the next digit of our solution. 
Result so far: 107.0
If we take 5684 away from 6020, we end up with 336.
Bring next digit (4) of the dividend behind the 336 and repeat the process: 3364 / 812

Advancing to step 6:
812 goes into 3364 4 times with a remainder of 116.
Record the quotient 4 as the next digit in the result. 
Result so far: 1074.0
Deduct 3248 from 3364 and we're left with 116.
Grab the next digit (5) from the dividend, add it to 116, then carry on: 1165 / 812

Going ahead to step 7:
812 can be fit into 1165 1 times, resulting in a remainder of 353.
Write down 1 as next digit of the result. 
Result so far: 10741.0
Subtracting 812 from 1165 leaves us with 353.
Grab the next digit (1) from the dividend, add it to 353, then carry on: 3531 / 812

Going ahead to step 8:
812 can be fit into 3531 4 times, resulting in a remainder of 283.
Put 4 as the next digit of the answer. 
Result so far: 107414.0
Subtract 3248 from 3531 to get 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Let's proceed to step 9:
812 goes into 2830 3 times with a remainder of 394.
Record the quotient 3 as the next digit in the result. 
Result so far: 107414.3
Deduct 2436 from 2830 and we're left with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Moving on to step 10:
When dividing 3940 by 812, we get 4 with a remainder of 692.
The number 4 becomes the next digit in our result. 
Result so far: 107414.34
If we take 3248 away from 3940, we end up with 692.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6920, and continue the process.

On to step 11:
If we divide 6920 by 812, we get 8 and a remainder of 424.
Record the quotient 8 as the next digit in the result. 
Result so far: 107414.348
If we subtract 6496 from 6920, we get 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Advancing to step 12:
When dividing 4240 by 812, we get 5 with a remainder of 180.
Put 5 as the next digit of the answer. 
Result so far: 107414.3485
Subtracting 4060 from 4240 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 13:
The number 812 fits into 1800 2 times, leaving a remainder of 176.
The next digit of our result is 2. 
Result so far: 107414.34852
Deduct 1624 from 1800 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Moving on to step 14:
812 can be fit into 1760 2 times, resulting in a remainder of 136.
Write down 2 as next digit of the result. 
Result so far: 107414.348522
If we subtract 1624 from 1760, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

After the division, we end up with 107414.348522 and a remainder of 1.36e-05.