We divide 16420436 by 621
We want to figure out the number of times 16420436 can be divided by 621.

On to step 1:
If we divide 1 by 621, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 621

Advancing to step 2:
621 goes into 16 0 times with a remainder of 16.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 16, we get 16.
Grab the next digit (4) from the dividend, add it to 16, then carry on: 164 / 621

Step 3:
If we divide 164 by 621, we get 0 and a remainder of 164.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 164 leaves us with 164.
Take the next digit (2) from the dividend and append it to 164, then repeat: 1642 / 621

Step 4:
621 can be fit into 1642 2 times, resulting in a remainder of 400.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 1242 from 1642 to get 400.
Grab the next digit (0) from the dividend, add it to 400, then carry on: 4000 / 621

On to step 5:
The number 621 fits into 4000 6 times, leaving a remainder of 274.
The next digit of our result is 6. 
Result so far: 26.0
Subtract 3726 from 4000 to get 274.
Grab the next digit (4) from the dividend, add it to 274, then carry on: 2744 / 621

On to step 6:
If we divide 2744 by 621, we get 4 and a remainder of 260.
Record the quotient 4 as the next digit in the result. 
Result so far: 264.0
If we subtract 2484 from 2744, we get 260.
Fetch the next digit (3) from the dividend, attach it to 260 and continue: 2603 / 621

Moving on to step 7:
2603 divided by 621 is 4 with a remainder of 119.
Use 4 as the next digit of our solution. 
Result so far: 2644.0
Subtract 2484 from 2603 to get 119.
Fetch the next digit (6) from the dividend, attach it to 119 and continue: 1196 / 621

Advancing to step 8:
621 goes into 1196 1 times with a remainder of 575.
Put 1 as the next digit of the answer. 
Result so far: 26441.0
Deduct 621 from 1196 and we're left with 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

Moving on to step 9:
The number 621 fits into 5750 9 times, leaving a remainder of 161.
The next digit of our result is 9. 
Result so far: 26441.9
If we take 5589 away from 5750, we end up with 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Step 10:
The number 621 fits into 1610 2 times, leaving a remainder of 368.
Put 2 as the next digit of the answer. 
Result so far: 26441.92
If we take 1242 away from 1610, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

On to step 11:
3680 divided by 621 is 5 with a remainder of 575.
The next digit of our result is 5. 
Result so far: 26441.925
Deduct 3105 from 3680 and we're left with 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

Moving on to step 12:
621 can be fit into 5750 9 times, resulting in a remainder of 161.
Put 9 as the next digit of the answer. 
Result so far: 26441.9259
If we take 5589 away from 5750, we end up with 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Going ahead to step 13:
621 goes into 1610 2 times with a remainder of 368.
Write down 2 as next digit of the result. 
Result so far: 26441.92592
Subtracting 1242 from 1610 leaves us with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

On to step 14:
621 can be fit into 3680 5 times, resulting in a remainder of 575.
Write down 5 as next digit of the result. 
Result so far: 26441.925925
Subtract 3105 from 3680 to get 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

Going ahead to step 15:
621 can be fit into 5750 9 times, resulting in a remainder of 161.
The number 9 becomes the next digit in our result. 
Result so far: 26441.9259259
Subtract 5589 from 5750 to get 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Advancing to step 16:
621 goes into 1610 2 times with a remainder of 368.
The number 2 becomes the next digit in our result. 
Result so far: 26441.92592592
Subtracting 1242 from 1610 leaves us with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

The quotient of the division is 26441.92592592, and the remainder is 3.68e-07.