Let's divide 70398386 by 643
We want to figure out the number of times 70398386 can be divided by 643.

Let's proceed to step 1:
The number 643 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 643

Going ahead to step 2:
643 can be fit into 70 0 times, resulting in a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 70 after subtracting 0 from 70.
Take the next digit (3) from the dividend and append it to 70, then repeat: 703 / 643

Moving on to step 3:
When dividing 703 by 643, we get 1 with a remainder of 60.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 643 from 703 and we're left with 60.
Grab the next digit (9) from the dividend, add it to 60, then carry on: 609 / 643

Let's proceed to step 4:
If we divide 609 by 643, we get 0 and a remainder of 609.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 609 leaves us with 609.
Bring next digit (8) of the dividend behind the 609 and repeat the process: 6098 / 643

Step 5:
643 can be fit into 6098 9 times, resulting in a remainder of 311.
Use 9 as the next digit of our solution. 
Result so far: 109.0
Subtract 5787 from 6098 to get 311.
Take the next digit (3) from the dividend and append it to 311, then repeat: 3113 / 643

Going ahead to step 6:
The number 643 fits into 3113 4 times, leaving a remainder of 541.
Use 4 as the next digit of our solution. 
Result so far: 1094.0
The remainder is 541 after subtracting 2572 from 3113.
Grab the next digit (8) from the dividend, add it to 541, then carry on: 5418 / 643

Advancing to step 7:
643 goes into 5418 8 times with a remainder of 274.
The number 8 becomes the next digit in our result. 
Result so far: 10948.0
Subtract 5144 from 5418 to get 274.
Take the next digit (6) from the dividend and append it to 274, then repeat: 2746 / 643

On to step 8:
643 goes into 2746 4 times with a remainder of 174.
Use 4 as the next digit of our solution. 
Result so far: 109484.0
Deduct 2572 from 2746 and we're left with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Going ahead to step 9:
The number 643 fits into 1740 2 times, leaving a remainder of 454.
Use 2 as the next digit of our solution. 
Result so far: 109484.2
Deduct 1286 from 1740 and we're left with 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

On to step 10:
643 can be fit into 4540 7 times, resulting in a remainder of 39.
Put 7 as the next digit of the answer. 
Result so far: 109484.27
If we subtract 4501 from 4540, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 11:
643 can be fit into 390 0 times, resulting in a remainder of 390.
Use 0 as the next digit of our solution. 
Result so far: 109484.27
The remainder is 390 after subtracting 0 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Let's proceed to step 12:
If we divide 3900 by 643, we get 6 and a remainder of 42.
Write down 6 as next digit of the result. 
Result so far: 109484.2706
The remainder is 42 after subtracting 3858 from 3900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 13:
If we divide 420 by 643, we get 0 and a remainder of 420.
Use 0 as the next digit of our solution. 
Result so far: 109484.2706
If we take 0 away from 420, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Going ahead to step 14:
643 can be fit into 4200 6 times, resulting in a remainder of 342.
The number 6 becomes the next digit in our result. 
Result so far: 109484.270606
If we take 3858 away from 4200, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

On to step 15:
If we divide 3420 by 643, we get 5 and a remainder of 205.
The number 5 becomes the next digit in our result. 
Result so far: 109484.2706065
Subtracting 3215 from 3420 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Advancing to step 16:
When dividing 2050 by 643, we get 3 with a remainder of 121.
Write down 3 as next digit of the result. 
Result so far: 109484.27060653
Subtracting 1929 from 2050 leaves us with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Our division results in 109484.27060653 with a remaining 1.21e-07.