We're dividing 73198357 by 621 
We want to figure out the number of times 73198357 can be divided by 621.

Let's proceed to step 1:
621 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 621

Moving on to step 2:
If we divide 73 by 621, we get 0 and a remainder of 73.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 73 to get 73.
Fetch the next digit (1) from the dividend, attach it to 73 and continue: 731 / 621

Step 3:
If we divide 731 by 621, we get 1 and a remainder of 110.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 621 from 731 to get 110.
Append the next digit (9) from the dividend to 110 and continue with: 1109 / 621

Let's proceed to step 4:
If we divide 1109 by 621, we get 1 and a remainder of 488.
The next digit of our result is 1. 
Result so far: 11.0
If we take 621 away from 1109, we end up with 488.
Take the next digit (8) from the dividend and append it to 488, then repeat: 4888 / 621

Advancing to step 5:
When dividing 4888 by 621, we get 7 with a remainder of 541.
Put 7 as the next digit of the answer. 
Result so far: 117.0
Deduct 4347 from 4888 and we're left with 541.
Grab the next digit (3) from the dividend, add it to 541, then carry on: 5413 / 621

Moving on to step 6:
621 can be fit into 5413 8 times, resulting in a remainder of 445.
Record the quotient 8 as the next digit in the result. 
Result so far: 1178.0
If we subtract 4968 from 5413, we get 445.
Include the next digit (5) from the dividend after 445, then repeat: 4455 / 621

Let's proceed to step 7:
621 can be fit into 4455 7 times, resulting in a remainder of 108.
The next digit of our result is 7. 
Result so far: 11787.0
Subtracting 4347 from 4455 leaves us with 108.
Include the next digit (7) from the dividend after 108, then repeat: 1087 / 621

Moving on to step 8:
If we divide 1087 by 621, we get 1 and a remainder of 466.
Use 1 as the next digit of our solution. 
Result so far: 117871.0
If we subtract 621 from 1087, we get 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Let's proceed to step 9:
The number 621 fits into 4660 7 times, leaving a remainder of 313.
The next digit of our result is 7. 
Result so far: 117871.7
Subtract 4347 from 4660 to get 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Let's proceed to step 10:
The number 621 fits into 3130 5 times, leaving a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 117871.75
Deduct 3105 from 3130 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 11:
621 goes into 250 0 times with a remainder of 250.
Record the quotient 0 as the next digit in the result. 
Result so far: 117871.75
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 12:
2500 divided by 621 is 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 117871.7504
Subtracting 2484 from 2500 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 13:
If we divide 160 by 621, we get 0 and a remainder of 160.
The next digit of our result is 0. 
Result so far: 117871.7504
The remainder is 160 after subtracting 0 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 14:
621 can be fit into 1600 2 times, resulting in a remainder of 358.
Record the quotient 2 as the next digit in the result. 
Result so far: 117871.750402
If we subtract 1242 from 1600, we get 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Advancing to step 15:
If we divide 3580 by 621, we get 5 and a remainder of 475.
The next digit of our result is 5. 
Result so far: 117871.7504025
Deduct 3105 from 3580 and we're left with 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Moving on to step 16:
If we divide 4750 by 621, we get 7 and a remainder of 403.
Use 7 as the next digit of our solution. 
Result so far: 117871.75040257
The remainder is 403 after subtracting 4347 from 4750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Our division results in 117871.75040257 with a remaining 4.03e-07.