80197134 divided by 621 
Our goal is to divide 80197134 by 621.

Advancing to step 1:
The number 621 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 621

Advancing to step 2:
If we divide 80 by 621, we get 0 and a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Grab the next digit (1) from the dividend, add it to 80, then carry on: 801 / 621

Step 3:
621 can be fit into 801 1 times, resulting in a remainder of 180.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 621 from 801 and we're left with 180.
Include the next digit (9) from the dividend after 180, then repeat: 1809 / 621

Moving on to step 4:
When dividing 1809 by 621, we get 2 with a remainder of 567.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we take 1242 away from 1809, we end up with 567.
Grab the next digit (7) from the dividend, add it to 567, then carry on: 5677 / 621

Let's proceed to step 5:
621 can be fit into 5677 9 times, resulting in a remainder of 88.
Write down 9 as next digit of the result. 
Result so far: 129.0
The remainder is 88 after subtracting 5589 from 5677.
Fetch the next digit (1) from the dividend, attach it to 88 and continue: 881 / 621

Step 6:
If we divide 881 by 621, we get 1 and a remainder of 260.
The number 1 becomes the next digit in our result. 
Result so far: 1291.0
Subtracting 621 from 881 leaves us with 260.
Append the next digit (3) from the dividend to 260 and continue with: 2603 / 621

On to step 7:
621 can be fit into 2603 4 times, resulting in a remainder of 119.
Write down 4 as next digit of the result. 
Result so far: 12914.0
Subtract 2484 from 2603 to get 119.
Append the next digit (4) from the dividend to 119 and continue with: 1194 / 621

On to step 8:
The number 621 fits into 1194 1 times, leaving a remainder of 573.
The next digit of our result is 1. 
Result so far: 129141.0
Subtract 621 from 1194 to get 573.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

Advancing to step 9:
621 can be fit into 5730 9 times, resulting in a remainder of 141.
Put 9 as the next digit of the answer. 
Result so far: 129141.9
Subtract 5589 from 5730 to get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Going ahead to step 10:
1410 divided by 621 is 2 with a remainder of 168.
Put 2 as the next digit of the answer. 
Result so far: 129141.92
If we take 1242 away from 1410, we end up with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Let's proceed to step 11:
If we divide 1680 by 621, we get 2 and a remainder of 438.
Use 2 as the next digit of our solution. 
Result so far: 129141.922
Subtracting 1242 from 1680 leaves us with 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

The quotient of the division is 129141.922, and the remainder is 0.0438.