We're dividing 99370338 by 645 
We're looking to find how many times 645 goes into 99370338.

Advancing to step 1:
The number 645 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 645

On to step 2:
If we divide 99 by 645, we get 0 and a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 99 to get 99.
Fetch the next digit (3) from the dividend, attach it to 99 and continue: 993 / 645

On to step 3:
993 divided by 645 is 1 with a remainder of 348.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 645 from 993 and we're left with 348.
Bring next digit (7) of the dividend behind the 348 and repeat the process: 3487 / 645

Moving on to step 4:
If we divide 3487 by 645, we get 5 and a remainder of 262.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 3225 from 3487, we get 262.
Include the next digit (0) from the dividend after 262, then repeat: 2620 / 645

On to step 5:
645 can be fit into 2620 4 times, resulting in a remainder of 40.
Use 4 as the next digit of our solution. 
Result so far: 154.0
The remainder is 40 after subtracting 2580 from 2620.
Grab the next digit (3) from the dividend, add it to 40, then carry on: 403 / 645

Step 6:
The number 645 fits into 403 0 times, leaving a remainder of 403.
Use 0 as the next digit of our solution. 
Result so far: 1540.0
Subtract 0 from 403 to get 403.
Bring next digit (3) of the dividend behind the 403 and repeat the process: 4033 / 645

Moving on to step 7:
645 goes into 4033 6 times with a remainder of 163.
Use 6 as the next digit of our solution. 
Result so far: 15406.0
Deduct 3870 from 4033 and we're left with 163.
Bring next digit (8) of the dividend behind the 163 and repeat the process: 1638 / 645

Step 8:
The number 645 fits into 1638 2 times, leaving a remainder of 348.
Use 2 as the next digit of our solution. 
Result so far: 154062.0
If we subtract 1290 from 1638, we get 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

On to step 9:
If we divide 3480 by 645, we get 5 and a remainder of 255.
Write down 5 as next digit of the result. 
Result so far: 154062.5
Subtract 3225 from 3480 to get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Going ahead to step 10:
The number 645 fits into 2550 3 times, leaving a remainder of 615.
Write down 3 as next digit of the result. 
Result so far: 154062.53
Deduct 1935 from 2550 and we're left with 615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

Step 11:
When dividing 6150 by 645, we get 9 with a remainder of 345.
Put 9 as the next digit of the answer. 
Result so far: 154062.539
Subtract 5805 from 6150 to get 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

On to step 12:
The number 645 fits into 3450 5 times, leaving a remainder of 225.
Write down 5 as next digit of the result. 
Result so far: 154062.5395
Subtracting 3225 from 3450 leaves us with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Let's proceed to step 13:
2250 divided by 645 is 3 with a remainder of 315.
The number 3 becomes the next digit in our result. 
Result so far: 154062.53953
The remainder is 315 after subtracting 1935 from 2250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Let's proceed to step 14:
645 goes into 3150 4 times with a remainder of 570.
Write down 4 as next digit of the result. 
Result so far: 154062.539534
If we take 2580 away from 3150, we end up with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Advancing to step 15:
5700 divided by 645 is 8 with a remainder of 540.
The next digit of our result is 8. 
Result so far: 154062.5395348
If we take 5160 away from 5700, we end up with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Let's proceed to step 16:
When dividing 5400 by 645, we get 8 with a remainder of 240.
The next digit of our result is 8. 
Result so far: 154062.53953488
If we take 5160 away from 5400, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

The quotient of the division is 154062.53953488, and the remainder is 2.4e-07.