We divide 39790652 by 643
The aim is to understand the frequency of 643 in 39790652.

Going ahead to step 1:
The number 643 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 643

Step 2:
643 can be fit into 39 0 times, resulting in a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Grab the next digit (7) from the dividend, add it to 39, then carry on: 397 / 643

Step 3:
643 can be fit into 397 0 times, resulting in a remainder of 397.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 397 after subtracting 0 from 397.
Grab the next digit (9) from the dividend, add it to 397, then carry on: 3979 / 643

On to step 4:
643 can be fit into 3979 6 times, resulting in a remainder of 121.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtract 3858 from 3979 to get 121.
Append the next digit (0) from the dividend to 121 and continue with: 1210 / 643

Let's proceed to step 5:
The number 643 fits into 1210 1 times, leaving a remainder of 567.
Put 1 as the next digit of the answer. 
Result so far: 61.0
If we take 643 away from 1210, we end up with 567.
Append the next digit (6) from the dividend to 567 and continue with: 5676 / 643

Going ahead to step 6:
When dividing 5676 by 643, we get 8 with a remainder of 532.
The number 8 becomes the next digit in our result. 
Result so far: 618.0
If we subtract 5144 from 5676, we get 532.
Grab the next digit (5) from the dividend, add it to 532, then carry on: 5325 / 643

On to step 7:
If we divide 5325 by 643, we get 8 and a remainder of 181.
Record the quotient 8 as the next digit in the result. 
Result so far: 6188.0
If we take 5144 away from 5325, we end up with 181.
Include the next digit (2) from the dividend after 181, then repeat: 1812 / 643

On to step 8:
If we divide 1812 by 643, we get 2 and a remainder of 526.
The number 2 becomes the next digit in our result. 
Result so far: 61882.0
Subtract 1286 from 1812 to get 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

On to step 9:
5260 divided by 643 is 8 with a remainder of 116.
The next digit of our result is 8. 
Result so far: 61882.8
Deduct 5144 from 5260 and we're left with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Step 10:
1160 divided by 643 is 1 with a remainder of 517.
The next digit of our result is 1. 
Result so far: 61882.81
If we subtract 643 from 1160, we get 517.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5170, and continue the process.

Let's proceed to step 11:
5170 divided by 643 is 8 with a remainder of 26.
Put 8 as the next digit of the answer. 
Result so far: 61882.818
If we take 5144 away from 5170, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 12:
The number 643 fits into 260 0 times, leaving a remainder of 260.
Record the quotient 0 as the next digit in the result. 
Result so far: 61882.818
The remainder is 260 after subtracting 0 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 13:
643 can be fit into 2600 4 times, resulting in a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 61882.81804
Deduct 2572 from 2600 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 14:
280 divided by 643 is 0 with a remainder of 280.
The next digit of our result is 0. 
Result so far: 61882.81804
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 15:
2800 divided by 643 is 4 with a remainder of 228.
The number 4 becomes the next digit in our result. 
Result so far: 61882.8180404
Subtracting 2572 from 2800 leaves us with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Moving on to step 16:
2280 divided by 643 is 3 with a remainder of 351.
Write down 3 as next digit of the result. 
Result so far: 61882.81804043
If we subtract 1929 from 2280, we get 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

The final outcome is 61882.81804043, with a leftover of 3.51e-07.